Player on the Other Side

A five-sided card with the letter &quote;J&quote; stamped on it appeared in Robert York's mail, and a day later he was dead, crushed by a boulder. It was no accident. Someone knew York would be under that rock wall at precisely 7:30. Then another card showed up for Emily York, stamped with the letter &quote;H,&quote; and Ellery Queen knew he was up against a brilliant killer who made a game of death by warning his victims. The only clue to the murderer's identity was the signature &quote;Y,&quote; and Ellery had to find him and stop his remorseless vendetta before &quote;Y&quote; won his mad game.