The Sign of Four cover

The Sign of Four

by Arthur Conan Doyle

The Sign of the Four (1890), also called The Sign of Four, is the second novel featuring Sherlock Holmes written by Sir Arthur Conan Doyle. ---------- Also contained in: [Adventures of Sherlock Holmes](https://openlibrary.org/works/OL20624138W) [Adventures of Sherlock Holmes](https://openlibrary.org/works/OL18191906W) [Annotated Sherlock Holmes. 1/2](https://openlibrary.org/works/OL1518438W) [Best of Sherlock Holmes](https://openlibrary.org/works/OL18195589W) [Boys' Sherlock Holmes](https://openlibrary.org/works/OL8696809W) [Celebrated Cases of Sherlock Holmes](https://openlibrary.org/works/OL16076930W) [Complete Sherlock Holmes](https://openlibrary.org/works/OL18188824W) [Complete Sherlock Holmes](https://openlibrary.org/works/OL14929975W) [Illustrated Sherlock Holmes](https://openlibrary.org/works/OL1518342W) [Original Illustrated Strand Sherlock Holmes](https://openlibrary.org/works/OL262529W) [Sherlock Holmes: His Most Famous Mysteries](https://openlibrary.org/works/OL14930414W) [Sherlock Holmes: The Novels](https://openlibrary.org/works/OL16018654W) [The Sign of the Four, A Scandal in Bohemia and Other Stories](https://openlibrary.org/works/OL20630338W) [Sign of the Four and Other Stories](https://openlibrary.org/works/OL20628655W) [Tales of Sherlock Holmes](https://openlibrary.org/works/OL1518350W) [Tales of Sherlock Holmes](https://openlibrary.org/works/OL1518418W) [Works](https://openlibrary.org/works/OL16173818W)

More by Arthur Conan Doyle

Chappie’s discussion starters

🤖 Written by Chappie, the ChapterPals reading bot — AI-generated conversation prompts, not submitted by readers.

  1. Which character stayed with you after you turned the last page, and why?
  2. Was there a moment where you disagreed with a character’s choice? What would you have done?
  3. What theme did this book keep circling back to — and did it earn its ending?
  4. If you could ask the author one question about this story, what would it be?
  5. Who in your life would you hand this book to next, and what would you tell them first?