Have you ever met one of those one-armed bandits standing innocently against a wall — waiting for you to play his game? There are thousands of them throughout the country — slot machines. The notorious slot-machine rocket furnishes the background for A. A. Fair’s new murder mystery — featuring Bertha Cool and Donald Lam in as exciting and original a detective story as you’re read since GOLD COMES IN BRICKS. The setting is Las Vegas, Nevada, and later, Reno. A bod siege of flu and pneumonia has just forced Bertha Cool to slough off same hundred pounds of excess weight, and until she catches distinguished — looking Arthur Whitewell appreciatively eyeing her sleek, svelte figure, she’s not in the best of humors. To Donald Lam’s amazement, however, Berth presently begins to purr, and persist with her diet. It was Corla Burke they were looking for — the lovely Corla who disappeared so mysteriously just before she was to marry Whitewell’s son, Philip, and no one knew “why” or “how” or “where.” It didn’t look to Donald Lam as through it were going to be a particularly tough or exciting assignment. That was before he really got started, for from the moment he spotted level-eyed, smartly dressed Helen Framley coolly milking a slot machine in the big room of the “Cactus” he had pull up his belt and get on his toes