<h2><SPAN name="CHAPTER_XIV" id="CHAPTER_XIV"></SPAN>CHAPTER XIV</h2>
<h3>Below the Dark Coral</h3>
<p>The sky was overcast, ceiling about two thousand feet, visibility about
two miles. The wind was moderate and steady. Rick examined the water in
front of the cottage and told his friends, "I can take off all right.
But I don't want to leave without a weather report or we might find
ourselves with no place to land."</p>
<p>"I'm going to swap this radio for a newspaper," Scotty grumbled. He had
been trying without success to get a weather report.</p>
<p>Tony Briotti looked at the Sky Wagon, brows furrowed, then asked, "Rick,
couldn't you turn on the radio in the plane and get a weather report
from the airport at Charlotte Amalie?"</p>
<p>Rick was climbing into the Sky Wagon before Tony finished. Of course he
could! He called, "I'm a chump!"</p>
<p>The set warmed and Rick called the airport, then held the phones to his
ears to hear the reply through heavy static. When the airport answered
he asked for a weather report for the area between St. Thomas and
Clipper Cay. He got it, and climbed out, his face thoughtful.</p>
<p>"The storm is having a pup," he told the others. "We're in a lull at the
moment. The main storm swung off to the north, but there's another one
right on its tail. We have just about time to get to Charlotte Amalie
and back before the second one closes us in."</p>
<p>The group went into action fast. All four pushed the plane into the
water. Zircon ran to pack a bag, and Tony went to get the film Rick had
taken for Zircon to carry to Steve. Scotty and Rick went through the
check list, inspecting the plane for possible storm damage. Then Rick
started the engine and warmed it up. By the time they were ready, Zircon
was climbing aboard.</p>
<p>Scotty yelled, "Tony and I will keep the home fires burning. Don't waste
any time, Rick!"</p>
<p>"I won't."</p>
<p>Zircon closed the cabin door and Rick taxied out. In a few moments he
was air-borne, swinging seaward over the north end of the island. He
looked down and saw two of the frogmen. They were in front of the house,
watching the plane.</p>
<p>"Be sure to tell Steve everything," Rick reminded the big scientist,
"and don't forget to give him the film. I won't have time to see him,
unless he meets the plane. But it doesn't matter, because you know
everything Scotty and I do."</p>
<p>"I'll be glad to get actively to work on this confounded business,"
Zircon stated. "I'm so curious about that brass ball the frogmen had in
the cave that I'm about to burst."</p>
<p>Rick set a compass course for St. Thomas, flying just under the clouds.
When they were a half hour out he contacted the airport again and asked
for the weather. The report hadn't changed. He told the airport
operator, "The doctor is coming. Please notify the patient." He could
almost see the operator jerk to attention as the headphones gave out a
crisp "Roger."</p>
<p>He sat down on a heavy chop at Charlotte Amalie, and the Sky Wagon gave
them a rough ride as he taxied to the pier. Lieutenant Jimmy Kelly was
waiting in a Navy sedan with an armed guard in attendance.</p>
<p>Rick supervised the refueling of his plane at the pier gasoline depot, a
task he would not delegate to anyone else. The presence of attendants
made it impossible to talk to the Navy lieutenant.</p>
<p>As Rick tightened the gas cap, Jimmy Kelly said, "Hop into your great
mechanical bird and shove off, birdman. You'll just about beat the
weather home as it is. Don't stop to fish on the way."</p>
<p>"I won't. Professor Zircon will tell you an interesting story. And we'll
be monitoring the command channel at six for any advice you can give
us."</p>
<p>"Okay. Don't get your feet wet."</p>
<p>Rick waved good-by to Jimmy and Zircon, then taxied out to the clear
area and took off. The ceiling was lower than on the trip in, and he
almost missed Clipper Cay because of strong winds and low visibility. He
spotted the southern tip of the island just in time to avoid going right
on by. He landed with beads of perspiration on his forehead. If he had
missed, with luck he might have hit Puerto Rico, but more likely he
would have had to make a landing in the open ocean.</p>
<p>Scotty and Tony came to greet him.</p>
<p>"We were worried," Tony said. "It's closing in fast."</p>
<p>"I got a little worried myself," Rick admitted. "Anything new here?"</p>
<p>Scotty gestured toward the northern end of the island. "Our pals have
been busy, diving. They got the brass ball, or whatever it is, and
stowed it aboard their boat. I kept an eye on 'em through the
binoculars. Also, I suspect they're going to do some more diving,
because they left their equipment on the boat."</p>
<p>Rick didn't particularly care at that moment. The flight back had been
something of a strain. "Let 'em go," he said. "We can't do anything
about it, anyway—not in broad daylight. Maybe tonight we can take a
look."</p>
<p>They spent the afternoon indoors, napping or reading, unable to swim or
fish because the second storm had arrived on schedule. Then, a few
minutes before six, Rick turned on the radio to the Navy command
channel.</p>
<p>At six on the nose, the radio emitted: "<i>A message for the blue-sheep
hunters. The blue sheep seen by the big hunter and the little hunter is
important. Obtain more information if possible. But remember that the
owners of the sheep are also mighty hunters. The snapshots of the sheep
were fine.</i>"</p>
<p>The message was repeated. When they were sure there was no more, Rick
switched the set off. "Well, we're in it, and with Steve's blessing. Now
what?"</p>
<p>Scotty shrugged. "Now we steal the brass ball. Didn't Steve's message
say to get more information?"</p>
<p>"Apparently the pictures turned out well, if I understood that reference
to snapshots correctly," Tony said. "Be serious, Scotty. What can we do
next?"</p>
<p>"Keep an eye on the frogmen, I guess, and play it by ear. I can't see
anything else to be done. We probably could steal their brass ball, all
right, but they'd know at once who had done it because we're the only
other people on the island."</p>
<p>"Have you looked recently to see what they're doing?" Tony asked.</p>
<p>Neither boy had. Both went to the front porch, but the frogmen's cottage
was invisible through the driving rain. "We'll have to go see," Rick
said.</p>
<p>"After dark," Scotty added. "In about an hour. It will be pretty dark
then."</p>
<p>"Do you suppose the brass ball is still on the boat?" Rick inquired
thoughtfully. "We might be able to sneak aboard after dark and get a
picture of it from close up, and we could examine it and have something
definite to report to Steve."</p>
<p>"That's a possibility," Scotty admitted. "Anyway, we can get ready."</p>
<p>Rick rechecked the camera and infrared unit. He loaded the camera with a
fresh roll of film. Then the three sat in the living room over coffee
and listened to the storm batter at the front of the house until it was
nearly dark outside.</p>
<p>"What now?" Tony inquired. "Do we all go? Or just one of us?"</p>
<p>"No point in all of us getting soaked," Scotty said. "Have you had any
experience in this kind of spying, Tony?"</p>
<p>The archaeologist had not. He grinned. "Until I came to Spindrift, I led
a rather quiet, academic sort of life. Except for the war, of course."</p>
<p>"Then Scotty or I had better go," Rick said. "Or both of us."</p>
<p>Scotty shook his head. "No need for both. It's only a reconnaissance,
anyway. Toss you for it."</p>
<p>Rick produced a coin. "All right. Call it." He flipped it as Scotty
claimed heads. It was a tail.</p>
<p>"Best two out of three?" Scotty invited.</p>
<p>Rick grinned. "And after that, best three out of five?"</p>
<p>Scotty growled, "All right. I'll go." He got ready by taking off shoes
and socks. He could change his shirt and shorts when he returned. He
slipped through the back door and was gone.</p>
<p>Rick turned on the radio, tried for a weather report, and settled for a
Miami disk jockey who was playing some good records. The static was bad,
but the station came through clearly enough to make listening worth
while.</p>
<p>Scotty was back before a half dozen records had been played. He sat
down, ignoring the water that dripped from him. "Listen, our friends
just rounded the northern tip of the island in the boat and they're
heading south just inside the eastern reef. What do you make of that?"</p>
<p>Rick pictured the movements of the enemy boat from Scotty's description.
"They can't be putting out to sea, otherwise they'd be outside the reef.
And they're not interested in anything on the island or they'd have
walked. I'd say they're planning to do some night diving on the eastern
side of the island."</p>
<p>"In this kind of weather?" Tony asked incredulously.</p>
<p>"Sure. It's stormy on top, but once you're below the wave motion it's
quiet as ever. They could dive."</p>
<p>Scotty stood up. "If they can, so can we."</p>
<p>There was no denial to that. They made a trip to the <i>Water Witch</i> and
collected their equipment, then planned what they would do.</p>
<p>"We'll all use lungs," Tony said. "We have three regulators and there
are plenty of full tanks, enough for two dives each. However, we have
only two pairs of glasses for the dark-light camera. I'll yield to
Scotty as the more experienced diver, so you and he use the glasses,
Rick. I'll stay on top, or near the top, with a single float, and a gun.
If I use the lung I can stay submerged most of the time and not have to
fight waves."</p>
<p>"Lash yourself to the float," Scotty cautioned.</p>
<p>"And we'll use a buddy line," Rick added. "The same one the professor
and I used. Scotty, you take a gun, and I'll take the camera."</p>
<p>"If I see any trouble in the making, I'll bang on my air tank," Tony
said. "You should be able to hear that for quite a distance."</p>
<p>There was nothing else to be planned in advance. They picked up their
equipment and went out the back door into the storm, crossing the island
through the palms. As they emerged onto the eastern shore, Scotty
called, "Look—about five hundred yards north."</p>
<p>The lights of the frogmen's boat, visible as bright halos through the
rain, were tossing violently just inside the eastern reef. Apparently
the boat was anchored. The rain was too thick for them to see any
movement aboard, or to see details of the boat itself.</p>
<p>"Move carefully," Rick cautioned. He had to raise his voice to be heard
above the storm. "We haven't explored this shore. It may be full of
coral heads."</p>
<p>"I doubt it," Scotty returned. "It would be too dangerous for the boat
in this kind of weather, even if they knew a channel."</p>
<p>"Rick's right about careful movement, nevertheless," Tony replied. "We
must move with care, especially near the reef." He indicated his float.
"I'll never be able to tow this through that water, so I'll leave it in
the palm grove. We can pick it up on the way back. We shouldn't need it
with lungs, anyway. Do you boys have rescue packs?"</p>
<p>The packs were plastic floats compressed into packages no larger than a
cigarette pack. They contained a carbon-dioxide cartridge and could be
inflated simply by squeezing them, which punctured the cartridge. The
boys had carried them on their weight belts for so long that they took
them for granted.</p>
<p>They donned their equipment, then walked down to the beach. The surf was
not heavy, since the wind was blowing from the opposite side of the
island. Nevertheless, there was enough water motion to lift a fine
screen of sand and dust.</p>
<p>"The camera will be useless until we get into deeper water," Rick
called. "Let's rope together and swim straight out."</p>
<p>They waded in, awkward in the fins, until they were deep enough for
swimming. Then all adjusted mouthpieces and started out. Rick tried the
infrared light intermittently, but not until they were in about twenty
feet of water did the roiled bottom allow its use. He led the way to the
reef, the others following in file.</p>
<p>The reef was closer to the surface than on the western side. Rick had to
swim along it until he found a place where they could cross without
being buffeted by breakers. Once across, he swam down the face of the
reef, knowing that the trip was hard on Tony, because the underwater
world was completely dark to one without light, or glasses with which to
see the infrared illumination.</p>
<p>Rick found a fairly level shelf at about thirty feet and swam along it,
keeping close to the reef wall, until he thought they were in the
vicinity of the frogmen. Then he pulled twice on the tie rope in a
signal to surface, knowing that Scotty would pass the signal along to
Tony.</p>
<p>He emerged in a rough sea, only yards from the point on the reef
opposite the anchored boat. He was in time to see two frogmen climb down
the boat's ladder. They got into the water and the third man, on deck,
lowered the brass object to them.</p>
<p>Rick had no fear that they would be seen from the boat. Their heads
would be hidden by the breaking waves, and their bubbles would merge
with the natural foam.</p>
<p>He saw at once what their tactics should be. He pulled Scotty and Tony
to him, then let his mouthpiece drop. Putting his lips close to their
ears, he said softly, "If it's like last time, they won't be down long.
Scotty and I will track them to find out where they go, and watch what
they're doing. Then, after they leave, we'll see if they left anything
behind."</p>
<p>Scotty and Tony nodded. Tony untied the line that had held him to
Scotty. Rick replaced his mouthpiece, cleared a little mist from his
face mask, and led the way down.</p>
<p>This time the infrared light operated continuously. Now and then Rick
worked the toggle switch through its loose plastic covering and shut the
unit off while he searched for visible light. He found it, far down the
face of the reef.</p>
<p>The camera made it easy, and his mind was at rest because this time
nature had made it impossible for their bubbles to give them away to
surface watchers.</p>
<p>There were heavy swells on the surface. He knew it because of the
pressure surges on his ears. But otherwise there was no sign of the
storm. He grinned because he suddenly realized that he felt dry. On the
surface, with the rain beating at him, he had felt like a drowned
kitten.</p>
<p>Moving with the confidence gained in his first experience, he led the
way seaward, then went to the level of the light. Soon they were close
enough to see the frogmen working over something on a coral ledge on the
reef face. They hovered motionless, watching, and as one of the frogmen
moved they saw that it was the brass ball.</p>
<p>Rick started his camera. He had an advantage, because the frogmen were
concentrating on what they were doing, their backs to him. He moved in
cautiously, camera grinding, then backed away again when he thought he
had enough long shots.</p>
<p>One frogman moved away a few feet, and Rick's breathing stopped as the
man's belt light flashed toward him. Had the frogman been looking, he
could have seen the boys, but he was too interested in the second
frogman's actions.</p>
<p>The second frogman crouched over the brass object, hand moving.</p>
<p>Rick recoiled as a wail lanced through his head with painful impact. He
felt the rope tighten as Scotty involuntarily drew away.</p>
<p>It was not the octopus, then! It was the brass ball that wailed. But
why? For what possible reason?</p>
<p>The frogmen were apparently satisfied. One of them picked up the
powerful light they had been using and turned it off. Then, with only
belt lights, they started back up the reef.</p>
<p>Rick waited until the lights were no longer visible. He glanced at his
depth gauge and wrist watch. They were at eighty feet, and they had
plenty of air left. He swam to the brass ball, camera grinding.</p>
<p>He had never seen anything quite like it. The brass sphere was mounted
on a box about twelve inches square and six inches high. From the
sphere, two rounded projections thrust out. He identified a waterproof
switch on the box, and two small knobs mounted on calibrated plates.
These were obviously controls, but he had no idea what they controlled.</p>
<p>Steve would want a few close-ups. Rick worked his camera focus and took
shots from every angle. When he had enough, he pulled twice on the rope
in a signal to surface. Scotty motioned to him to lead the way.</p>
<p>As Rick started up, four metallic clangs, irregularly spaced, rang
faintly in his ears.</p>
<p>Tony, banging his tank in the signal for trouble! Rick instantly changed
course and followed the bottom, watching the water overhead for any sign
of the frogmen. When he had reached a spot below the point on the reef
where Tony should be waiting, he turned toward the surface, moving
slowly, searching for any sign of activity. There was no sign of
whatever had alarmed Tony.</p>
<p>He paused a few inches under the surface, then carefully put his face
into the air. Scotty surfaced beside him.</p>
<p>There was no sign of Tony. Rick peered through his mask and saw that the
boat was still anchored in the same place. There were figures on its
deck. Four of them—Four! He ripped his mask off for a clearer look, and
his heart skipped a beat. The frogmen had Tony!</p>
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