Underwater excitement as a man records his fifteen odd years spent in search of treasure salvage. Deep water diving, first in an ordinary diver's suit, then in a robot, Bieseberg engineered various expeditions in all parts of the world. Prime lure was the wreck of the Plata Flota, nineteen Spanish galleons with immeasurable gold, which eluded him three times. Dangers and failures as he came up against gain octopus, sharks, Cuban artillery; partial success at odd intervals as he made a of fifteen or twenty thousand. Straight personal adventure in a fabulous field, fairly well told.