Misterio de los mensajes sorprendentes

This Spanish-language edition presents "Mystery of the Strange Messages," the fourteenth book in Enid Blyton's Five Investigators series, translated by Conchita Peraire del Molino with illustrations by Lilian Buchanan. The narrative opens with Police Constable Goon receiving anonymous letters composed of newspaper clippings pasted irregularly onto cheap paper. The cryptic messages reference "Las Yedras" (The Ivies) and a person named Smith, puzzling the constable. After finding a fourth note in his laundry bag, Goon suspects Frederick "Fatty" Trotteville, the roundish boy detective, of orchestrating a prank. However, upon confronting Fatty at his home, the boy denies involvement and invites Goon inside where his fellow investigators—Larry, Daisy, Pip, Bets, and Fatty's Scottish terrier Buster—have gathered. The constable prepares to accuse them, though uncertainty clouds his investigation.