O Mistério da Estrada de Sintra

Two young writers, Eça de Queirós and Ramalho Ortigão, published this in 1870 as anonymous letters to the editor of Lisbon's Diário de Notícias, reporting a baffling crime on the road to Sintra. It is a detective story that mocks the sensational serials of the day, written for the pleasure of the joke and of the puzzle.

Summary written with Claude Sonnet 5.5.