The Werewolf Principle

From the back cover of the first DAW printing: "Andrew Blake, found in a space capsule on a distant planet, was brought back to an unfamiliar Earth, where antigravity devices had replaced the wheel and houses talk and even fly! Yet nothing was as strange as Blake's own feelings. Tormented by eerie sensations and a loss of memory, he didn't know who he really was nor exactly where he came from. His destiny only began to grow frighteningly clear when he met a weird, tassel-eared creature who darkly hinted at the truth about Blake's origins. Slowly Blake became aware of the long hushed-up "Werewolf Principle," a scientific theory buried in the past, which held the key to Blake's own fate - and the future of the human race..."