The Clue of the New Pin

Jesse Trasmere kept his fortune locked in more ways than one. The miser died in a sealed vault, and no one can explain how. His nephew wanted more money. A Chinese restaurant owner held secrets. An actress lost her jewels. A theatre reporter named Tab Holland stumbles into a case that asks only one question: who kills a man in a room that cannot be entered? Edgar Wallace builds his puzzle with the precision of a master craftsman, layering suspicion onto every character until the reader isn't sure who to trust. The locked vault becomes a crucible where greed, secrets, and desperation collide. Published in 1923, at the height of Wallace's powers, this is Golden Age detective fiction before the genre knew its own rules. It moves fast, it misdirects ruthlessly, and the solution arrives like a bolt from the blue. For readers who grew up on Christie and Sayers, this is where they learned to love the locked room.