When the Boxcar Children uncover a strange puzzle in a friend's backyard, it's just the beginning of the "spy game"—a search for clues leading to gold! The children must make sense of a mysterious old photo and a riddle. But soon the children begin to suspect that there's a mystery inside the mystery. Just who is behind this spy game, anyway?
- Available Now
- Newly Added Audiobooks
- Audiobooks for your commute
- Most Popular Audiobooks
- Try Something Different
- See all
- Top Kids Titles
- Top Teen Titles
- Kids & Teens
- Get in the Game!
- Best Read-Alongs
- Juneteeth for Kids and Young Adults
- See all
- Popular Magazines
- Just Added
- Food & Wine
- Fashion
- Health & Fitness
- Home & Garden
- Kids & Teens
- News & Politics
- See all