White Lion, 1974. This is the first hardcover edition of this novel, first published as a paperback original by Ace in 1963. HIGHLY COLLECTIBLE when found with a nice dustjacket. A classic Philip K. Dick novel, this one involves a depopulated, post-apocalyptic earth. The remaining humans play a board game called "Bluff," and the outcomes determine marrigages, status and property of the players. The Game is administered by amorphous, silicon-based aliens from Titan, Saturn's largest satellite.