uddenly Parrish raised his head. "I've got it fixed, I think, Dent," he said. "I'm going to count. When I reach 'three,' seize Cain and pull him aboard."

Jim nodded. The uneasiness was increasing. The guards at the camera-like object were each holding some sort of mechanical accessory in their hands. It looked like a small sphere of glass, and it connected with the apparatus by means of a hollow tube of fibre. Jim guessed that in an instant the Ray could be made to dart out of the lens. It would be quick work—as nearly as possible instantaneous work.

"Ready, Dent?" asked Parrish in an even voice. In this crisis the old man had become astonishingly calm. He seemed the calmest of the lot. "One!"

Jim beckoned to Cain, who came toward him, his eyes goggling in inquiry.

"Two!"

Jim reached out and took Cain by the arm. There was a sharp question from the Atlantean who had spoken before.

"Three!"

With all his force Jim yanked Cain over the edge of the boat. The Drilgo stumbled and fell headlong with a howl of terror. But headlong—inside.

What happened was practically instantaneous. A sudden whir of the mechanism, a violet glow from the funnel, the smell of chlorine—a flash of blinding blue-white light. The Atlantean guards had fired—a quarter-second too late!