When their friend Sam gets a letter full of riddles from an eccentric millionaire, the Aldens are eager to help him crack the code. If Sam can solve the puzzle, he will inherit the millionaire's money! But Sam isn't the only one in town to receive a letter - and whoever solves the mystery first will win the prize!
- New Fiction
- All Fiction
- Thriller
- Mystery
- Romance
- Historical
- Fantasy
- Horror
- Inspirational
- See all ebook fiction collections
- New Nonfiction
- All Nonfiction
- Biography
- Cooking & Food
- History
- Self-Improvement
- Health & Fitness
- Business
- Travel
- See all ebook nonfiction collections
- New Fiction
- New Nonfiction
- All Fiction
- All Nonfiction
- Thriller
- Mystery
- Romance
- Fantasy
- Inspirational
- See all audiobooks collections