Author Pages

Browse Genres Trending Search
The Sign of the Four book cover

The Sign of the Four

by BoingyBooks Classics
🏢 BoingyBooks
The Sign of the Four by Arthur Conan Doyle (1890)

The second Sherlock Holmes novel. A young woman seeks Holmes' help after receiving mysterious pearls annually for six years following her father's disappearance. The case leads to a stolen Indian treasure, a one-legged convict, and a dramatic Thames river chase.

Historical Significance:
Commissioned at a dinner party where Doyle met Oscar Wilde (who was simultaneously commissioned to write The Picture of Dorian Gray), The Sign of the Four wa...

Read free on BoingyBooks: https://boingybooks.com/marketplace/product.php?id=122
More by BoingyBooks Classics
View All Books by BoingyBooks Classics →
BoingyBooks Classics
About the Author

BoingyBooks Classics

BoingyBooks Classics brings timeless children's stories to life with interactive read-along technology. Each book features word-by-word bouncing ball animation synchronized to professional narration, with touch-to-pronounce on every word to help young readers build vocabulary and reading skills. Our library includes beloved public domain classics and Creative Commons picture books from around the world — all free to read, share, and enjoy.
View Full Profile →

Stay Updated

Get notified about new books by BoingyBooks Classics and similar authors.

No spam, ever. Unsubscribe anytime.

Author Pages by BooksAndGuidesPro
Privacy PolicyContactTerms of Service© 2026 BooksAndGuidesPro.com