Penelope Tredwell, the pen behind bestselling author Montgomery Flinch, is cursed with writer's block. She needs a sensational new story or her magazine, the Penny Dreadful, will go under. So when a mysterious letter arrives, confessing to the impossible crime of stealing the Crown Jewels just days before the King's coronation, Penelope thinks she has found a plot to enthrall her readers, until the police charge Montgomery Flinch with the theft of the jewels. Can Penelope solve the mystery, restore the jewels, rescue Monty, save the magazine, and keep the true identity of Montgomery Flinch a secret?