"Jay, old boy, look at me. Do you know me? Speak to me, pal, and tell me you are all right again." It was the voice of Dick. He was bending over chafing the wrists of his comrade in school and in arms. Tears were coursing down his cheeks. But now he was happy because Jay had opened his eyes again and smiled feebly through flickering eyelids. For some time the rescued diver lay in a stupor. The heavy diving armor and shoes had been wrenched off. Several members of crew were rubbing his wrists and ankles, An oxygen tank had been used with successful results. The tiny spark of life remaining had been fanned again after a grim battle between science and nature. And science had turned the ally of nature. "Do you know me now?" faltered Dick. For answer Jay opened his eyes again, and this time he recognized his chum. "Where have I been? What happened to me?" he began. "Don't you remember? You were down there working on the _Dominion_. You got all tangled up in something and we just pulled you up in the nick of time." And then it all came back to Jay; the terrible struggle for life on the bottom of the sea. Those twisted air lines! He seemed to be living it all over again. And that mass of débris that held him fast! "Pull it off of me, Dick; cut me free," he moaned feebly. "You are all right again, old boy; you're right here on the deck of the _Nemo_," reassured Dick in soothing tones. Slowly but surely the iron constitution of the Brighton boy responded to resuscitation measures. Good fresh air flowed again into his lungs, clearing his brain and setting his circulation going anew. "Where is Weddigen?" asked Jay, with a startled expression. "He's here on the aft deck, pretty well tuckered out, but fine and dandy, nevertheless," Dick told him. "And the diamonds--did he send them up?" inquired Jay. "You bet your boots he did; all here safe and sound," was his chum's rejoinder. "A nice day's work, too; but what would we have cared for the stones if your life had been forfeit in the deal." The diamonds! How did Jay know about them? "How did you know Weddigen landed any diamonds?" asked Dick, bending over his chum. "I saw them," came the answer. "But Weddigen says he landed them all alone and didn't see a trace of you all the time he was down. How's that?" Dick was nonplussed. "Tell you after a bit," whispered Jay. They made him as comfortable as possible on deck, preferring to leave him out in the fresh air and sunshine rather than carry him below. Dick took complete charge of him, and a capable physician he proved as he ministered to the needs of his chum. Now that Jay had been rescued, the men of the _Nemo_ were celebrating hilariously the salvage of the precious jewels, knowing the contents of the chest must be worth many thousands of dollars. Under the direction of Captain Austin the strong box was carried below, not to be opened until the _Nemo_ returned to her base at Bridgeford.