A mug of steaming black coffee was thrust into his hand and he sipped, grateful for the spreading warmth it brought.

Suddenly he started again. "Scotty! Where is he?"

"Up here, Rick, with me."

He looked up, and his eyes focused again—on Tony and Zircon!

A motor whaleboat drew up to the landing stage, and two husky frogmen handed up a suited figure. "Here's one, Lieutenant," a frogman called.

"All right, Danny. Where's the other?"

"Heading for the reef at top speed. Jonesy's after him."

"Go help Jonesy haul him in."

"Yes, Sir." The motor whaleboat veered off and sped toward shore.

A frogman surfaced almost at Rick's feet. He instinctively drew back, and the frogman gripped the edge of the stage, spat out his mouthpiece, and pulled up his mask with the other hand.