Code and cipher stories
Featured — award winners and classics first, when available. Use “Show different books” for a new selection.
🔄 Show different books
The fire
In Too Deep (The 39 Clues, #6)
Agent 21
Flashpoint
Mission Hindenburg
The secret three
The Case of the Double Cross
Code talker
From Texas with love
All the Devils Are Here
Ruby Redfort take your last breath (Ruby Redfort #2)
Wright 3
The Bridge to Never Land
Chameleon chaos
One False Note
A King's Ransom (The 39 Clues
Storm Warning (The 39 Clues #9)
Windtalkers
Novels (Angels & Demons / Da Vinci Code)
Six sacred stones
The Maze of Bones
Countdown
Dead Time
Day of Doom
The forbidden territory
The Romeo and Juliet code
The 39 Clues
La Sonrisa De Mona Ratisa
The Sword Thief (The 39 Clues, #3)
Ruby Redfort look into my eyes (Ruby Redfort #1)
Browse free books to read online
Book Explorer lets readers browse the free, readable part of the Open Library catalogue by familiar genres, or by the exact subject tags Open Library assigns each book. Every book has its own page with a reader where one is available, plus links to Open Library, your library, Libby and Amazon.
Fiction
- All Fiction
- Literary Fiction
- Children's Fiction
- Mystery & Detective
- Romance
- Fantasy
- Thriller & Suspense
- Historical Fiction
- Science Fiction
- Graphic Novels & Comics
- Humor
- Short Stories
- Horror
- Young Adult Fiction
- Western
Non-fiction
- All Non-fiction
- History
- Biography & Memoir
- Religion & Spirituality
- Politics & Social Sciences
- Travel
- Philosophy
- Business & Economics
- Science
- Art & Photography
- Cooking
- Self-Help
- Music
- Health & Fitness
- Sports & Recreation
- Humor
- True Crime