When Keith Stoner awoke, he found himself in a world changed almost beyond recognition. Eighteen years before, Stoner had been the American member of a joint U.S.-Soviet mission to capture an alien ship. The Soviets had to pull out, but Stoner persisted, and while on the strange ship, he fell into suspended animation. Jo Camerata, the ambitious young student who fell in love with Stoner, is now head of Vanguard Industries, which has recovered the…