# O Mysterio da Estrada de Cintra. Cartas ao Diário de Noticias

By Eça de Queirós and Ramalho Ortigão.

"O Mysterio da Estrada de Cintra. Cartas ao Diário de Noticias" by Eça de Queirós et al. is a serialized novel published in 1870. Considered Portugal's first detective story, it unfolds through letters to a Lisbon newspaper describing a mysterious kidnapping and murder. Two friends are abducted near Sintra and discover a corpse in an isolated house. As more correspondents write in—including the kidnappers, suspects, and witnesses—layers of intrigue emerge involving a countess, masked men, and questions of guilt that captivated readers who believed the sensational events were real. (Summary by Project Gutenberg, written by machine.)

- Language: Portuguese
- Subjects: Detective and mystery stories, Portuguese

[Read it](https://invisiblenetwork.ai/books/gutenberg/20574/read)
[Plain text](https://invisiblenetwork.ai/api/books/gutenberg/20574/text)

## Audiobooks of it

- [mysterio da estrada de Cintra](https://invisiblenetwork.ai/books/librivox/17298) by José Maria de Eça de Queirós (7 h 52 min, Portuguese)

From Project Gutenberg. Public domain in the United States.