Chapter 35

THE STALKING TERROR

Roger left the laboratory. He located Grover. His recital amazed and

stunned his cousin.

"Astrovox unconscious still. Ryder hovering in the balance. Toby in a

cell." Grover summed up. "Two attempts to reach you--and why? Can't you

think, Roger?"

"I've mauled my brain, but I just don't see what I seem to be expected

to know."

"And the missing jewel," groaned Grover. "Where is it?"

"I haven't seen it since Clark put it in his pocket, in the temple,

Grover."

His cousin considered the matter as they took lunch in a quiet corner of

an uptown restaurant.

"You lock up securely and make certain that the devices all work."

Grover said, as they separated, "I shan't have to stay with the old man,

because it isn't expected that he will regain his wits for at least

several days. I must go to the museum. Business has to go on. Then I

will have a talk with Potts. We have given him what the French call a

'white card'--a clean slate. But--I want to question him. He might have

picked up the real gem. He could have realized what a find it was. He

may not have discarded it. And while I hate to suspect him--"

"But he wasn't there, today, when Doctor Ryder--"

"How do you know?"

Roger was silent. Like Grover he hated the idea; but Potts had been

free, supposedly resting. He might have been around. If anybody could

know ways to get in--oh, it was not thinkable, though!

Much more Roger preferred to mistrust the electricians, or the

bio-chemist.

On his way back he stopped at home to get the record carrying the "fire"

and crackles. He would need a fresh record for that night.

With his package he returned to the laboratory. Everything was quiet,

there. The men, in their activities, were sober but busy. Zendt greeted

Roger.

"How is Astrovox?"

Roger told him. It was suspicious, the young cousin decided, that Zendt

was so anxious. Less so, it seemed, about Doctor Ryder. He made no

inquiry, though Roger, coming in, had called up the hospital to learn

that the man was out of danger due to the prompt action of the interne

at the laboratory. He must be quiet, for ten days or, at least, for a

week, Roger had been told.

"Astrovox," he told Zendt, "is unable to say anything, and they don't

expect anything else for days."

That, he hoped, would "spike" any intentions the man might have to harm

the old astrologer. Not wishing to say more he hurried to the dark-room,

quickly put the waiting films in a time-and-temperature regulated bath

and went out of the place for the eighteen minutes that would elapse

during development. He busied himself clearing out the waiting

requisitions for minor needs from the stockroom, tested the glass used

by the doctor with no result, and then put the films in hypo. for

fifteen minutes, staying in the open rooms during fixing period and

washing afterward. He was not going to be caught in that dark-room, with

Grover and Potts away and some stalking menace quite possibly still

abroad.

His list was still in the file, he made certain. He had thought that it

might have been taken; but he realized that whatever was on the paper

was also in his head, and that was why he was endangered.

When it came close to closing time he helped clear away used trays and

other chemical apparatus, washing-up. He gathered up all films and got

ready for the next day's work. The developed and printed film he left on

the drying drums, not caring to stay long in the dark-room.

When, close to the office at all times, he was certain that the staff

was absolutely out of the building, he began a careful and thorough, but

hurried series of operations.

His decision to stay there all night, discussed with Grover, had finally

been agreed to by his older cousin.

At home, there was no way to avert the trick used before. The fuse box

could not be guarded unless they hired a Falcon patrolman.

That the laboratory was more impregnable had been proved the night

before by the effort used to enter. The fire, set off probably by a pole

carrying a light, inserted from above the telescope, had been assurance

that even the skylight was considered too risky by whoever had wanted to

enter. That one had set the fire, hoping that firemen would have broken

in, giving him--not her unless the stenographer was suspectable--a

chance to run in with them.

What _they_ could want (or what _he_ could want), Roger did not seem

able to decide. Not the laboratory's secrets. When the false gem had

been sought in the safe, nothing else had been disturbed.

Roger, determined to stay all night in the laboratory, made his

preparations with thoroughness and care in spite of his speed.

The old microphones set at doors, windows and other probable entrances,

he tested. The cameras he took out of circuit. They would not need to

record, because no one must get in to be snapped.

From the upper room he resurrected the old shadow-box with its panel of

lights, connecting them into circuits so that the least disturbance by

any microphone, even a vibration of its sensitive diaphragm by slight

sounds, would cut a relay and light the right lamp.

The connections of the magnetic plates he traced, to be sure no one had

cut a cable. Where they all came together at the transformer Roger

transferred the connection from the 180-volt step-up to the next higher

output. Anyone touching any plate must receive a 300-volt charge. He

would not risk anyone getting away, granting that such a one got past

the bolts he wired fast, as he did with window catches.

The fuse-box bothered him. If an intruder could in any way get in and

pull out fuses, perhaps all his precautions to hold them would be

futile.

Presently a solution of that difficulty came to his trained mind.

With the fuses left in place, he disconnected the cables that fed the

protective devices, wearing heavy rubber gloves and with rubbers on his

feet.

Taking that set of flexible cables back behind the furnace and to the

main box of the electric company input, he risked later censure for

tampering with their property by breaking their seal on the box,

throwing off the big, main switch, and connecting-in his cables to the

main line just within the input lines. He closed the box, sealed it with

the switch again in the "on" blades, and knew that any outsider must be

ignorant of his precaution. The fuses could be pulled, the wires at the

switch-boxes could be cut, and still his plates and microphones would be

actively charged, potent and effective.

Roger, effectively sealed in, he felt, sat down with the supper he had

ordered in, saving milk and sandwiches for later, and ate with a feeling

that he was safe.

Half way through the meal, with an inspiration, he took a charged wire

from the main-line up to the telescope still poked up out of the

skylight. He had climbed up. If anyone started to climb down--what a

shock that telescope would give.

Contentedly he closed his meal with a big cream-puff.

Soon after that darkness came. Roger, unwilling to discover his presence

by lighting a light, sat comfortably in Grover's "thinking den," and put

his thoughts to work on the problem of that list of sounds.

If he had only guessed it, his very elaborate precautions had been

overdone by just one protective effort.

Night chased the western glow away and brought stars to look down upon a

very quiet, apparently deserted building.

Roger, restless after an hour of fruitless thinking, wandered at slow

pace toward the upper floor, planning to start there on an inspection

route that would kill time and give new assurance.

He had not completely mounted the stairs when he heard a sharp, almost

explosive crackle. His eyes were dazzled by a flash as if it had begun

to storm and lightning had flashed. He stood, transfixed. The flash

died, and to his amazement he heard a queer sound as if splintered glass

were dropping, tinkling and scattering; and yet it was a muffled sort of

clinking noise.

He summoned his best courage and with shaking limbs crept on up to the

second story. There, looking around half-fearfully, he was more amazed

than ever. In the gloom, objects he knew well by location loomed without

any apparent change. The telescope pushed its long barrel upward, the

table and chairs, cabinets and cages, seemed as before.

He threw on a switch for light.

None came!

He stood there, baffled. Had the power-house cut off their "juice" or

had a dynamo cut out for the time? No. There had been that detonation

and flash. A torpedo such as he had made? No--more like the spark from

their high-tension transformer jumping a gap.

As he stood there, something below him went over with a crash!

The Mystery of the Fifteen Sounds · 第 35 / 42 章