The intergalactic athletic competition had just begun, and Shaun Sili didn't even know about it when fast-talking trader Zeth Tristotha found him herding sheep on the high-gravity planet Sobillon. But Zeth knew Shaun would make a discus thrower--maybe the best in the galaxy. Once aboard Zeth's ship the Vulcan Adventurer, Shaun is on the way to high adventure among the stars--on the water-covered planet Droth, where the strange underwater life offers stranger perils, and on the planet Pevoria, site of the Olympics, where Shaun must compete not only with his fellow athletes--but with mortal danger!