CHAPTER XVIII

The Stingaree's Tail

"This is the plan," Steve Ames said. "Joe and Chuck will approach from

upriver and go around the mansion fence by wading downstream. They'll

stay under cover somewhere at the edge of the mansion grounds until they

hear my signal on the radio to close in--or until they see the balloon

launched. I'll go in the way I did before."

The two JANIG agents nodded, and bent over the chart borrowed from the

houseboat.

"Cobb will set up his equipment here at my house," Steve continued, "and

try to intercept all signals from the mansion. McDevitt will set up here

too, and track the balloon through my telescope--if it rises--watching

until the rocket fires. McDevitt also will keep in touch with Wallops

Island by radio, and notify me on the walkie-talkie when the countdown

reaches thirty minutes."

Steve turned to Rick and Scotty. "Before I go to my post, I'll take you

two to the creek mouth in the runabout. Then you will swim up the creek,

underwater, and take up stations in the weeds directly in front of the

house."

Rick's pulse stopped. "They'll see our bubbles," he protested. "It would

give the whole show away!"

Steve motioned to Joe Vitalli. "Show 'em."

Joe walked to the car in which he and Chuck had driven from Washington,

and opened the trunk. He brought out a pair of riot guns, automatic

shotguns, which he handed to Chuck, then he reached into the trunk and

brought out a pair of small cylinders with full face masks attached.

"Rebreathers!" Rick exclaimed. He grinned at Steve. "You planned this

before you ever told us what was on your mind!"

"I thought it was best to be prepared," Steve said. "You know how these

work?"

Rick nodded. "We both do." The rebreathers, unlike Scubas, which were

filled with compressed air, used oxygen which was recycled through a

canister of chemicals that removed water vapor and carbon dioxide. They

were completely self-contained; no bubbles were emitted.

Cobb was already opening a pair of leather-covered cases, exposing

electronic gear. He had also brought a portable antenna, which he began

setting up. McDevitt had a radio in his car with which to talk to

Wallops, and Steve handed him one unit of a walkie-talkie radio network.

Another unit went to Chuck, and Steve retained one.

Steve glanced at his watch. "Let's get going. Time your travel so you

will be in place at eight o'clock on the nose." He looked at the boys.

"Get into your gear, and take spear guns with you. When we move into

action, I want you to bring that balloon down if you can."

The boys ran to the houseboat. Rick was excited, and he knew Scotty was

feeling the same way. It was the first time they had been in on a JANIG

operation as full partners. Their previous adventures had either been as

accidental participants or as observers.

They got into full gear, including their skin-tight neoprene helmets and

footgear. Then, leaving their fins and rebreathers, they hurried back to

the others. Joe and Chuck were in their own car, the riot guns and

walkie-talkie out of sight. McDevitt had the telescope set up next to

his car and was practicing with it by tracking a high-flying osprey.

Cobb was finishing work on his electronic setup. His antenna was in

place, the dish on top of the collapsible pole aligned on the compass

direction to Calvert's Favor.

Steve shook hands with Joe and Chuck. "On your way. See you when the

balloon goes up." He motioned to the boys. "Got spear guns?"

"We left that till last," Rick said. "Ready to go?"

"Ready."

The three hurried down the pier to the houseboat, where the boys took

guns from their spear box. Each chose a high-powered gas gun, operated

by a carbon dioxide cartridge, and selected the spears that would cut

the biggest holes. There would be time for only one shot.

"Get on the floor in the runabout when we cast off," Steve directed. "If

there are any watchers, I want them to see only one man."

The boys cast off, then climbed in as Steve backed into the creek. They

crouched on the floor and adjusted the straps on their face masks until

the fit was tight. There was no conversation. Rick was so excited it was

hard to sit still. As they began the crossing of the Little Choptank

River, Steve gave them instructions. "When we get opposite the creek

mouth, the engine is going to stutter and kick up a lot of smoke. The

boat will drift into the smoke and out again. You'll have a few seconds

to go over. I'll pretend to work on the motor, and finally get it

started, but running rough. Then I'll take off and pretend I'm heading

home. Okay?"

"How are you going to make smoke?" Rick asked.

Steve reached into his breast pocket and produced a small bottle. "These

are chemicals that smoke when they touch water. Got your plans all

made?"

Rick looked at Scotty. "We'll have to stick our heads up once in a

while. I'll lead, since I know the creek as far as the cove. When I

think I'm lost, I'll head for the north bank, making a sharp turn. That

will be your signal to stay put, while I look. What I'd like to do is

bring us out in back of the duck blind. We can pick our spots then and

cross the creek when we're ready."

"Got it," Scotty agreed.

Steve reached down a hand and squeezed their hands in turn. "Good luck,

kids. And no unnecessary chances. If shooting starts, get underwater

again. We'll have guns, but you'll have only single-shot spear guns."

"Good luck," the boys said in unison. They put on the masks and turned

the valves that started the oxygen cycles. Rick grinned at Scotty

through the glass, and knew that his grin was strained. Scotty grinned

back and held up his hand with thumb and forefinger making the signal

for "Okay."

"Be ready," Steve said.

Rick checked himself once again to be sure all was in order. Weight

belt, knife, compass, spear gun with safety cap on, mask fitting

tightly, and the pack in place. He got ready to jump on Steve's command.

The outboard slowed, raced, slowed, raced, back-fired, slowed. Steve's

hand went over and trailed chemical in the water. The boat turned, and

Rick saw the smoke cloud rising. The boat went into it, and the motor

cut out.

"Go," Steve said.

Rick stood upright and went over the gunwale in a dive, knifing toward

the bottom. He felt the pressure wave as Scotty followed and reached a

hand upward to meet his pal. His hand touched Scotty's arm, found the

hand, and gave it a squeeze. Then, with a glance at his compass to

orient him, Rick started the long swim.

It was odd to be wearing the oxygen lung. The sound of bubbles from the

customary compressed-air Scubas was missing, and the silence was

strange. Then Steve started the motor of the runabout and Rick heard the

broken rhythm as the motor skipped. He knew that Steve probably had

turned the carburetor mixture to too lean or too rich. Either would

cause the motor to run rough. He kept moving, his fins keeping a steady

stroke. The motor sound grew distant, and finally faded entirely.

Rick usually depended on pressure to tell him location, but the creek

was too shallow for any strong indication on his ears. He kept going

until the visibility and brightness told him he was in the shallows,

then steered out into the middle of the stream again.

He thought they must be halfway to the mansion, but wasn't sure. He gave

a pair of swift kicks to alert Scotty, then turned sharp left, rolling

over on his back. He could see the water surface clearly. Rising a

little, he lifted his face above the water for a brief second, then went

back under.

Now was the time to get behind the duck blind. Rick swam back to where

Scotty waited, and plucked at his shoulder. This time he started off

close to the north shore, heading directly for the duck blind. His

course was straight. In a few moments he found himself among the pilings

and turned to put the blind between himself and the mansion on the

opposite shore. Scotty followed.

Rick lifted his head cautiously. He saw only the marsh grass and the

back of the blind. He tapped Scotty, who rose until his head was level

with Rick's, his face only a few inches away. They pulled off their

masks.

"We can swim under the blind and look out the front," Rick whispered.

"There's enough brush to give us cover. We'll each pick our own spot and

go to it. Sound all right?"

"Okay. Better fix our guns right here, though."

It was good advice. Rick removed the safety cap from his spear, making

sure the barbed shaft was properly seated. Now he needed only to flick

off the safety catch and fire. Scotty did the same.

"You go right and I'll go left," Scotty suggested softly. "Be better if

there's a little spread between us. We'll also want to find places where

we can look out. There's some weed along the shore, and I think I

remember a brush pile around a stake near the right-hand edge of the

lawn. One piling is there. There's a bunch of old pilings off to the

left where the original pier was. I can see if there's cover there. If

not, I'll find something."

Scotty had worn his waterproof watch. It was just four minutes to eight.

Time to get going.

The boys shook hands, grinned at each other, and pulled their masks back

on. They ducked under the blind, side by side, and swam to the front of

the structure where brush from last year's cover remained.

Cautiously Rick peered out, then sucked in his breath. A truck had been

wheeled out of the barn. It had a dish antenna on top. And next to the

truck, a mass of black plastic was slowly inflating. A flying stingaree!

Rick looked quickly for a spot to which he could swim. Near the edge of

the cut lawn was the piling Scotty had mentioned. It was tall, with a

light on it for night navigation. Rick realized he had seen it on

earlier trips, but had not noticed it particularly because his attention

had been on the house and its occupants. Slightly upstream from the tall

piling were a series of stakes, saplings pushed into the bottom to

indicate the limits of water deep enough for a boat. Around three of the

pilings brush and grass had gathered, picked up from the current. The

middle pile was highest. Rick decided to head for it.

Scotty was also searching for a hiding place. Apparently he found one

that was satisfactory, because he gripped Rick's shoulder for a moment,

then submerged. Rick saw him as a shadow, hugging the bottom.

Now was the time. Rick took a deep breath to quiet his taut and shaky

nerves, then sank to the bottom and began the last leg of the trip. It

was only a few dozen yards to the sapling he had chosen. He reached it

and glanced upward. The mass of debris made a black blotch on the bright

surface of the water. Moving with infinite caution and using the sapling

as a guide, he swung his legs under him and rose to a sitting position.

The debris was still above the level of his eyes, so he swung his legs

back again and knelt. The kneeling position brought his head to just the

right level. He lifted his face and looked at the debris. Working

cautiously, he brought a hand up and poked a hole through. His fingers

enlarged the hole until he could see sufficiently.

The flying stingaree was tugging at the rope that held it! The shape was

almost perfect, Rick thought, but he doubted that it had been designed

to look like a sting ray. More likely it had been picked to look as

little like a conventional balloon as possible. Well, it had served its

purpose.

Merlin, alias Lefty Camillion, and his electronics wizard were fitting a

rocket into a loop on a plastic strap that dangled from the balloon.

Rick couldn't see it clearly, but thought it was a replica of the one he

had recovered.

There was sound from the truck containing the dish antenna. Rick pulled

his mask away to hear a little better and heard a loudspeaker,

rebroadcasting something.

"... reports no aircraft within range limits. We are now at thirty-one

minutes and counting. On my mark the time will be zero minus thirty

exactly."

There was only the crackle of the loudspeaker. The set was tuned in on

the Wallops Island command frequency, Rick realized. That was how

Camillion and company knew when to release the balloon, and when to

trigger the rocket!

Camillion's bodyguard was manning the rope holding the balloon. It was

attached to a ring on the truck. As Rick watched, the bodyguard let out

more line and the balloon rose slightly, tugging at the rope, and moving

toward Rick. The tail hung down almost to the ground, the rocket hanging

at an angle at its end.

The loudspeaker voice said, "Stand by. Mark! Zero minus thirty."

The bodyguard reached up and cut the rope!

Rick saw the flying stingaree heading directly toward him, rising

slowly, caught by the ground wind. He brought his spear gun into

position and rose to his full height, snapping off the safety catch.

Oblivious to the yells from the lawn, he aimed and fired. With a sharp

hiss, the spear flashed through the air--into the balloon and right

through it!

The balloon didn't even falter. It would take time to lose sufficient

gas to bring it down. The wind swept it right toward Rick, still rising.

As it passed over him, the dangling rocket would be almost within reach.

Rick didn't hesitate. He saw the track of the balloon curving, as the

wind shifted direction downstream over the water. He threw himself to

one side and forward, dropping the spear gun, one hand outstretched. The

rocket slapped into his palm and his fingers closed around it. The jerk

pulled him forward and he grabbed with his other hand, missed, and

grabbed again. This time he caught the rocket, and both hands gripped

tight.

The flying stingaree lifted him, dragging him through the water. Rick

spun around at the end of the line, and caught a glimpse of the

bodyguard raising a pistol to shoot at him! Then the scene whirled and

he saw Scotty, standing in water to his waist, spear gun lifted to fire.

[Illustration: _The flying stingaree lifted him!_]

Rick saw the spear leave his pal's gun, and he whirled his head in time

to see the bodyguard looking down with horror at the shaft protruding

from his side.

The boy didn't see the piling. His last quick impression was of the

bodyguard falling forward, then there was a stunning impact as the side

of his head met creosoted wood and darkness flooded in.

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