"Don't know just how to put it in words," young Farmer replied.

"But--well, after that little talk with the colonel last night, I was

quite steamed up, as you would say. Very mysterious, and exciting, and

possibly dangerous, if you get what I mean."

"I do," Dawson grunted. "But all it is to me now is mysterious. You can

have my share of the excitement and danger, if any. I'm just full of

beans, though, I guess. After some of the close shaves you and I have

had, routine stuff just gets me down, but quickly! But there have been

two bright spots in this thing so far, thank goodness."

"Bright spots?" Freddy Farmer echoed. "Then I must have been looking the

other way at the time. What do you mean?"

"At Miami and San Juan," Dawson replied. "The way those two commanding

officers tried to pump us as to what the sealed envelopes contained. It

was nice to look very wise and not tell them a darn thing. It was fun to

see somebody else floundering around in the dark. Misery loves company.

Say! Know what I hope, Freddy?"

"I wouldn't even dare guess!" the English-born air ace replied. "What do

you hope?"

"That the lad we contact at San Fernando has a copper disc with numbers

that add up to forty-five!" Dawson told him.

"What?" young Farmer gasped. "Forty-five? But, Dave, the number is--"

"Sure, forty-one!" Dawson cut in. "But don't you catch on, pal? If the

number is forty-five, it means that the lad is a phoney. And that means

that maybe we'll get some excitement out of this aerial messenger boy

job."

"Rot, and very much so!" Freddy snapped angrily. "Come off it, Dave!

This is very serious business, and you are absolutely balmy to even hope

that things will go wrong. Just remember what Colonel Welsh said, Dave.

If one of these sealed envelopes should fall into Axis hands, he'd

rather put a bullet in his brain than go on living. Stop being a blasted

fool, old thing! It's not a bit like you at all!"

"Okay, okay, papa!" Dawson chuckled. "Consider that you have up-ended me

and given me the shingle where it counts most. Just the same, I hate to

think of going stark, raving mad in the cockpit of a Wright-powered

Vultee."

"Well, if that's all that's bothering you, you can put it out of your

mind at once," Freddy snapped, "because you were that way a long, long

time ago!"

"Oh, yeah?" Dawson shouted.

"Yeah!" Freddy Farmer replied. "But definitely!"

They left it that way for the next fifteen minutes or so. At the end of

that time the Vultee was well out of sight of all land, and Dawson was

keeping it on course with instruments. At the end of that time, too, the

southern part of the heavens began to mist and fog up and gradually

change to a copperish gray. The straight line that marked where the blue

of the sky ended and the copperish gray began told Dawson that a line

squall was moving across the Caribbean. But five minutes later the

little twinge of uneasiness that had come to him melted away, because

the copperish gray moved westward and not up northward toward the

Vultee. However, because of the silly mood that had gripped him since

leaving Puerto Rico, he had to voice a crazy thought.

"Wouldn't you know, not even a storm to give us something extra to do!"

"Eh, Dave?" he heard Freddy Farmer say. Then a second later, he felt

Farmer's hand tapping him on the shoulder, and heard his pal's excited

voice crackling in his inter-com phones. "Bear ten degrees eastward,

Dave! There's something down there on the water. Can't see it clearly

yet. Looks like a bit of rag being waved about by somebody."

Dawson changed the Vultee's course, and at the same time twisted around

in the seat and glanced back at Freddy. Then he turned front and peered

ahead and down in the direction of the English youth's pointed finger.

He squinted his eyes slightly and even shielded them against the golden

sun with his free hand. But for all he could see, he might just as well

have kept both eyes shut. There was just blue Caribbean, turned golden

here and there by shafts of sunlight dancing off the surfaces of the

rolling swells.

"I know you can see through a brick wall, Freddy," he said, "but if you

can see anything down there, then I'll eat it!"

"It will be quite a meal!" Freddy Farmer cried. "Because it happens to

be a life raft! And there are chaps on it. Yes, four chaps! And one is

waving his shirt, or something. Blast those dirty U-boat blighters!"

"Never mind the U-boats!" Dawson growled. "Just stick to the raft. Where

the heck is it? I think you're seeing things. I--Hold it, everybody;

hold it! I see it now, Freddy! I wasn't looking far enough out. Yeah!

That's a raft sure enough. Boy! I bet this sun is doing plenty to those

birds!"

As Dawson spoke, he watched the small raft riding the rolling swells of

the blue Caribbean, as helpless as a leaf. As he stared at the four

figures in the raft, his anger boiled and the blood throbbed in his

temples. Dirty U-boat blighters, and how, as Freddy had said. Of all the

fighting forces to come out of Nazi Germany, the U-boat commanders and

crews were the worst. Human life, and particularly the lives of women

and children, meant even less to them than it did to the Gestapo. Steel

sharks of the sea, they were called. To call them that was an insult to

a real man-eating shark. There just wasn't any name to call those who

manned Nazi U-boats, because there is no name in any language that

adequately describes them.

Yes, the dirty U-boat blighters! Down there on the bobbing raft were

four who were no doubt victims of a terrible life-and-ship-destroying

explosion that had probably come in the dark of night. As those and

other bitter thoughts raced through Dawson's mind, he impulsively eased

back the Wright-Cyclone's throttle and slanted the nose of the Vultee

downward.

"How I wish this was a flying boat, and we could pick up those poor

beggars!" he heard Freddy Farmer groan.

"You and me both!" Dave agreed. "We have a radio, thank goodness. So we

can get help sent out before those fellows have to spend another night

at sea. I wonder how long they've been floating around?"

"Quite some time, I fancy," Freddy Farmer said. "The chap waving his

shirt seems to be the only one with any life in him. The three huddled

down in the raft might as well be dead. Sights like that one make me

thank my lucky stars I'm in the air end of this blasted war."

"You can say that again for me!" Dawson echoed. "At least in the air you

get it clean and fast. Mostly, anyway. Check and double-check! The boys

that really deserve the medals and the praise in this scrap are the

merchant marine fellows. They have nothing to fight back with except a

pea-shooter at the stern, and maybe one on the bow. They're perfect

floating targets twenty-four hours a day. If their engines break down,

heaven help them! Yes, my hat is off to those fellows, and I don't mean

maybe. I--Hey, Freddy! See that? He's trying to send us a message with

his shirt, isn't he? He seems to be waving it down to the right more

than down to the left."

"That's right!" Freddy Farmer cried. "That's the old International Morse

code done with a flag. To the right is a dot, and to the left is a dash.

And straight down in front means the end of a word. Now, where's my

blasted pencil, and I'll put it down. There he put it down in front

three times! That means the end of the message. If he'll only repeat

it, I think I can get it."

The man standing on the tiny raft seemed to wait a moment or two, as

though he were striving to rally his waning strength for another effort.

Then he started waving his shirt again. It was a short message, and both

boys got it without bothering to jot down each letter. The message

signaled was:

FLY OVER LOW PLEASE, IMPORTANT

"What do you make of that, Freddy?" Dawson asked, and dipped the

Vultee's nose even more. "Does he think we're a rescue plane that's come

to drop food and water, poor devil?"

"I don't know," the English youth replied. "Possibly. Or maybe there's

something on the raft he wants us to see. The only thing to do is to go

down and find out. I say! I've just remembered! I have some chocolate,

Dave. I'll tie it up in my handkerchief and try to drop it right onto

the raft, if you get us down low enough. But, for heaven's sake, don't

hit the raft, or the water!"

"Aw gee!" Dawson grated at him. "And that's just what I was planning to

do, too! You spoil all my fun, you dope! Act your age, will you?"

"Just don't take us down too low," Freddy Farmer reminded him evenly.

Dawson opened his mouth to make a fitting retort. Instead he shrugged,

let Freddy's remark slide, and concentrated on getting the Vultee down

as low as he possibly could. When he had reached an altitude of some ten

or fifteen feet, he throttled the Wright Cyclone until it was just a

shade on the good side of stalling. He guided it toward the tiny life

raft. The shirt-waver had ceased his signaling and was crouching down on

the raft as though he were afraid Dawson was going to bounce the

Vultee's belly off the top of his hatless head.

"So you're also silly enough to think I'll come too close?" Dawson

growled, as he experienced a moment of annoyance. "Well, relax, fellow!

Just relax, and let's have a look at the meaning of that message. Okay,

Freddy! Get set to drop that chocolate!"

As he spoke, he impulsively started to jerk his head around. Some inner

warning cut short his effort, and it was that inner warning that

unquestionably saved his life, and Freddy Farmer's life, too. In other

words, just as he was about to turn his head for a look at Young

Farmer, all four men on the raft sprang to crouching positions. Each

gripped a sub-machine gun in his hands and blazed away at the coasting

Vultee!

True, Dawson's sudden inner warning had helped, but it was his

instinctive reaction to sudden danger that actually saved his life and

Freddy's. In less time than it takes to bat an eyelash, he had smashed

the throttle wide open with one hand and was hauling the Vultee around

in a wing tip water-kissing turn with the other. Had he started to climb

at that same time, the Grim Reaper still might have claimed them both,

because the four crouching figures on the raft had automatically pointed

their machine guns skyward.

As it happened, though, Dawson held the Vultee in a tight turn until its

tail was toward the raft. Then he quickly flattened out, shot forward

for a split second, and banked the Vultee over on its left wing tip. He

banked it to the right wing tip and hauled the craft up in a twisting

power zoom toward the sun-filled heavens. Only when he was well out of

range and had leveled off did he let the clamped air out of his lungs

and shake the cold beads of sweat from his forehead.

"Suffering rattlesnakes, Freddy!" he choked out. "Was that a nightmare,

or did it happen? Those bums let fly at us, Freddy! All four of them!"

There was no answer from young Farmer, and in the length of time it took

Dawson to twist around in the seat, he seemed to die a thousand deaths.

His fears were unfounded, however. Freddy Farmer was very much alive. No

bullet had snuffed out his life, though the left side of his glass hatch

was covered with a million tiny cracks. Amazement and utter bewilderment

were all that was wrong with the British-born air ace. He sat rigid in

his seat, staring at Dawson as though he had never seen him before in

his life. His face was white under his sun-and-wind bronze, and his

mouth hung open as though he had intended to yell, but had been shocked

into forgetting all about it.

"Hey, Freddy, snap out of it!" Dawson shouted, and rocked the Vultee

violently.

The English youth stared blankly for a second longer. Suddenly he

blinked, and his whole body shook like a leaf. The breath came from

between his lips in a whistle that Dawson could almost hear above the

roar of the Vultee's Cyclone.

"The blighters! The low-down dirty beggars! They shot at us;

They--they--" Young Farmer choked on his words, and his eyes opened

still wider in amazement.

It took a half second or so for Dawson to realize that Freddy was

looking at something forward and downward. Automatically, he twisted

around front and looked down. He let out a bellow of surprise. Down on

the Caribbean was a Nazi U-boat breaking surface not over fifty yards

from the floating life raft. Unable to move a muscle, he stared as the

conning-tower hatch opened and a couple of men spilled out onto the wet

deck and hurried toward the bow. The undersea killer veered over toward

the floating raft.

What he saw made Dave fighting mad. He shook with anger, and a red film

seemed to slide over his eyes.

"So?" he bellowed at the top of his lungs. "So it's like that, huh?"

It was just like that. No sooner had the words left Dawson's lips than

the U-boat's bow gun belched flame, and the sky a hundred yards or so

off the Vultee's right wing tip seemed to explode in a roar of sound and

a great puff of oily black smoke. An instant later, another bit of sky

seemed to explode. This time the puff of oily black smoke was high above

the Vultee. This was because Dawson had turned the nose of the plane

downward and was thundering straight at the U-boat at almost rocket

speed.

"So you want to play, do you?" He shouted the crazy words. "Well, so do

we! And how! Here, catch, you tramps!"

The Vultee's wing guns punctuated his words with a chattering blast of

sound that made the aircraft tremble violently. Straight lines of silver

tracers cut down at the two men crouched behind the guard of the

U-boat's bow gun. They would have done better had they dived overboard

and down under the U-boat's keel. The bullets from the Vultee's wing

guns found them and smashed them to the steel deck. Tapping rudder a

bit, Dawson veered the plane's nose a shade to the right and blazed away

at the open conning tower hatch. A man crawling up out of it was flung

head over heels clear of the U-boat's side and down into the water as

though by some invisible giant.

By then the Vultee's prop was about ready to chew into the conning tower

itself, and Dawson had to haul the nose up and go curving around and

away. That maneuver permitted Freddy Farmer to go into action with his

rear guns. As Dave jerked his head around for a split second, he saw the

four men on the raft trying to scramble up to the U-boat's wet deck,

only to go toppling over backwards like tenpins and disappear beneath

the surface of the water.

"There, you rotten beggars, you'll not do that again!" the English

youth's voice rang loud in Dawson's inter-com phones. "Not by half, you

won't!"

"The sub's crash diving, Freddy!" Dawson yelled as he saw the hatch

close and the nose of the U-boat slip down under water. "Oh, gosh! If we

only had a depth charge or two! Oh, how I hate to let that snake get

away!"

As the wishful words spilled off his lips, he was in the act of doing

what little he could. That was wheeling around and down for another run

over the crash-diving U-boat, and letting fly with all his guns at the

top half of the submerging craft. He might possibly hit some part that

would check the dive and force the U-boat back to the surface. That was

a slim, slim hope, and it died completely as the entire craft slid out

of sight, leaving behind an empty life raft and seven bodies.

With a groan Dave cut his fire, and hauled the Vultee up out of its

dive and onto even keel. He stared down at the floating bodies, gulped,

shuddered slightly, and drew a hand across his goggles, as though that

would wipe away the scene below and make everything as it had been

before. It didn't, of course, but when he took another look downward he

found it hard to believe that Death had been whispering so close. Then

he snapped out of his trance.

"Get the nearest patrol base on the radio, Freddy, and report that

U-boat's position!" he spoke into his inter-com mike. "There's just a

chance that it may have to surface soon, and somebody else can nail it."

"Right-o!" Freddy Farmer called back. "But, gosh, I would love to be

that somebody else! Or--or has this just been a crazy dream, Dave? It

doesn't make sense! Those were blasted Nazis on the life raft.

Like--like a confounded decoy, or something. I--"

"_Decoy?_" Dave Dawson gasped, and sat up straight in the pit. "Holy

smoke! Do you suppose so? Sure, you must be right. Look, Freddy! Report

that U-boat's last position. Then we'll get out of here, but fast!

Something is kind of screwy, and I don't like it, but plenty I don't."

As Dawson nosed the Vultee around and onto its course for San Fernando

on British-owned Trinidad, he impulsively lifted his free hand to his

chest and pressed it against the two sealed envelopes and the little

vial of acid that were in his inside tunic pocket.

CHAPTER SIX

_Changed Orders_

The U. S. Army Air Transport Command at San Fernando comprised the

entire south side of the Trinidad air base. Dawson spotted the American

flag atop the Administration Building from the air. After his recent

experience, a great sense of relief and joy flooded through him at the

sight of Old Glory waving proudly in the breeze. And not only that, but

the sight of Old Glory meant also that this crazy aerial messenger-boy

mission was one-half completed. Three more stops and they would be at

Natal. There they would meet Colonel Welsh and, please, please, God,

find out what in thunder this secret sealed-envelope business was all

about.

"And if he doesn't tell me," Dawson muttered as he let down the Vultee's

wheels and nosed the craft earthward, "it's going to be the end of a

beautiful friendship as far as I'm concerned. Right! He's got to give us

a tiny inkling, at least or--or--Well, I sure hope he does, anyway."

"So do I, old chap!" he heard Freddy Farmer echo his hope. "I also want

to see his face when we tell him what we have to tell. You haven't any

new ideas, have you, Dave?"

"Dawson shook his head. During the remainder of the flight to this next

stop, both had taken the U-boat experience apart and had carefully

examined it piece by piece. It was all to no avail, in regard to

reaching any definite conclusion. True, the logical conclusion was that

the life raft had served as a decoy to bring them down so low that its

occupants could shoot them into the water. When that had failed, the

lurking U-boat had surfaced to try its luck with its bow anti-aircraft

gun. If that was the correct conclusion, it made everything even more

screwy. Colonel Welsh was the only man living who knew why they were

making this crazy flight. He had told them so. How could a Nazi U-boat

at sea learn the secret they shared with Colonel Welsh? And--

"Gosh!" Dawson gasped. "But no! Heck, no! That would be even screwier!"

"What, Dave?" Freddy asked. "You do have a new idea?"

"Not exactly," Dawson replied. "Just a chilling thought. Do you suppose

those birds on that raft were _really_ torpedo survivors, and in their

crazed state took us for a Nazi plane and--"

"What utter rot, Dave!" Freddy Farmer interrupted. "Don't be silly, old

thing! Of course not! Would four torpedo survivors bother to take four

sub-machine guns onto a life raft with them? Certainly not! Come out of

it, Dave! They were Nazis, sure enough. They were from that U-boat, too,

and set adrift to have a go at us."

"But how--" Dawson began and cut himself off short. "Oh, skip it! If I

let myself think any more about the crazy business, I'll forget what I'm

doing and crack us up."

"Then for goodness' sakes don't think of it!" Freddy Farmer cried in

alarm. "I fancy I've had excitement enough for the rest of this day! So

forget things and keep your eye on that field down there."

Dawson did just that, and a couple of minutes later he set the Vultee

down light as a feather and taxied it over toward the Administration

Building. He braked to a stop eventually, unsnapped his safety and

parachute harness, and climbed stiff-legged down onto the ground. Freddy

Farmer joined him, and they were just starting to get some of the flight

stiffness out of their legs when a major came out of the Administration

Building and walked over to them.

"Captains Dawson and Farmer?" he asked with a smile.

"Yes, sir." Dave replied with a salute. "I'm Dawson. And you are Major

Parker, Yank commandant here, sir?"

"That's right," the senior officer replied. "Welcome to Trinidad. Word

came through that you were making a survey flight along our South

American bases. I think you'll find we're not doing so badly here at San

Fernando. Here, this came through about half an hour ago. It's addressed

to you both. Needless to say, we didn't try to decode it. I don't

believe we have that code in the base book, anyway."

The major held out a small yellow envelope. Dawson took it, ripped it

open, and withdrew a single sheet of paper. His heart did a loop in his

chest when he saw that the coded message was signed, "Tiger." That was

the signature Colonel Welsh used whenever he contacted the boys in

secret. The major had been quite correct, too. The code used by Colonel

Welsh was not to be found in the regular base code book, because it was

a special one that the colonel had made up himself. This code was not

known by more than half a dozen men, two of them being Dawson and

Farmer. The value of such a code was that it was so made up that a

decoding book, or decoding wheel, was not needed. Once you knew the

code, you could read messages from the memory of what the various

letters and numbers and symbols meant.

Dave Dawson and Freddy Farmer looked at it together, while Major Parker

politely stared off across the base field. The true meaning of the

message became instantly apparent to them. Translated in their minds, it

read:

"Halt flight San Fernando. Arriving by air midnight. Serious

emergency developed. Maintain constant alert. Destroy evidence if

necessary. Important!

WELSH"

Dawson read the coded message three times, absently pulled off his

helmet and goggles, ran his fingers through his hair, and glanced

sidewise at Freddy Farmer.

"And that is strictly that," he said. "But I wonder what?"

"I don't know," the English-born air ace replied with a shrug of his

shoulders. "Frankly, though, I don't think I'm annoyed by this message.

Fact is, I'm just a bit glad. Much rather see him tonight, instead of

waiting until we get to Natal."

Dawson grinned faintly, and nodded.

"Yeah, I get what you mean," he murmured. "Maybe there's a connection

between this and what happened a while ago, eh?"

"If not, I'll be very much surprised," Freddy Farmer said slowly. "And

yet I may be a bit balmy to say that. How could there possibly be any

connection?"

Dawson shrugged, but made no reply. He stuffed the coded message into

his pocket, and turned to where Major Parker was inspecting the Vultee.

"Thanks for giving us the message, sir," he said. Then he added with a

grin, "It sort of looks as though we've been fired, you might say. Our

superior officer is joining us here at midnight. Would it be all right

for us to eat in the Officers' Club and sort of kill time until he gets

here?"

"Certainly, Dawson," the major replied at once. "The place is yours.

Help yourself to anything you like. So your survey flight is called off,

eh?"

"Well, temporarily, anyway," Dave replied. "But don't ask me why,

because I wouldn't know, Major."

"Okay, I won't," the other smiled. "I'll ask you this, instead. What

kind of trouble did you run into on the way down here?"

"Trouble, Major?" Dawson echoed, and stared at him hard.

"These holes," the senior officer replied, and pointed to a cluster of

four bullet holes six inches in from the Vultee's left wing tip.

"Somebody been sticking a pencil through the wing skin, eh?"

"No; Nazi slugs," Dawson told him. "We--we came across a surfacing

U-boat about eighty miles out. It crash dived right after it sighted us,

but it threw up a few slugs in the meantime. We got a couple of its

crew, though. We radioed Puerto Rico patrol base and gave them the

U-boat's position. Have you heard any report that she was caught and

nailed?"

"None," the major said, and then pointed across the field. "We wouldn't

get that sort of thing, anyway. This is a British-owned base, you know.

That we're here is a sort of lend-lease in reverse, you might say. And

radio stuff such as your call would be picked up by them over there. Too

bad, though, you didn't have a couple of depth charges aboard."

"You're telling me, sir?" Dawson echoed with a grim laugh. "I'd have

given my right eye for just one! I don't think I hate anything so much

as I hate the U-boats."

Dave Dawson at Casablanca · 第 2 / 10 段