Master of the Walking Dead, by Joseph J. Millard (epub/Kindle)

Although the original blurb for this mystery story reads: "Molding corpses stalk darkness as fate cuts a grim, macabre jigsaw of death!" don't go into it expecting anything to do with the modern TV show about zombies. Despite the (apparent) presence of the "walking dead," this short novel from 1939 is a classic mystery from one of the finest pulp writers of his day!