# The Adventure of the Red Circle

By Arthur Conan Doyle.

"The Adventure of the Red Circle" by Arthur Conan Doyle is a short story published in 1911. When a landlady seeks Holmes's help regarding her mysterious lodger who pays double rent but remains invisible, the detective uncovers a hidden woman in fear. Through coded candle signals and surveillance, Holmes and Watson become entangled in a dangerous case involving an Italian criminal organization, a vengeful assassin, and a couple desperately fleeing their violent past across continents. (Summary by Project Gutenberg, written by machine.)

- Language: English
- Subjects: Holmes, Sherlock (Fictitious character) -- Fiction; Private investigators -- England -- Fiction; Detective and mystery stories

[Read it](https://invisiblenetwork.ai/books/gutenberg/2345/read)
[Plain text](https://invisiblenetwork.ai/api/books/gutenberg/2345/text)

## Audiobooks of it

- [Adventure of the Red Circle](https://invisiblenetwork.ai/books/librivox/19513) by Sir Arthur Conan Doyle (49 min, English)

From Project Gutenberg. Public domain in the United States.