by Tim Powers. Here is a brief description of the book:
In Last Call, the Locus Fantasy Award and World Fantasy Award winner by Tim Powers, ex-professional gambler Scott Crane hasn’t returned to Las Vegas, or held a hand of cards, in ten years. But nightmares about a strange poker game he once attended—a contest he believed he walked away from a big winner—are drawing him back to the magical city.. because the mythic game did not end that night in 1969. And the price of his winnings was his soul.