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.
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.
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.
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.
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.
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."
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.
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.
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.
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.