Tony and the boys roared with laughter.

"Hobart," Tony said with a chuckle, "you never fail to astonish me. And how do you propose to stick your not-inconsiderable nose into the business now going on over there?"

Zircon waved his hand. "The method was developed by our young Mr. Brant, who sometimes shows slight sparks of intelligence. He has a device which projects infrared light, and glasses that allow the wearer to see whatever that light illuminates."

Rick stared. Zircon was proposing that they take his underwater camera and use it for illumination. That must mean ... "You want to swim over with the lungs?" he asked incredulously.

"And why not?"

"But we've never done any night diving!"

"You tested the camera at night, did you not?"

"Yes," Rick admitted, "but that was in water that we knew, off Pirate's Field at home. And we only stayed in long enough to expose a few feet of film."

"We know enough about these waters to know that there are no dangerous obstructions beyond the reef, at least between here and the Maiden Hand."

Scotty laughed. "This is a day I never thought would come. It's usually the other way around, with Rick trying to sell some idea that everyone else opposes. Why not swim at night, Rick?"