Amy and Dan are separated while trying to retrieve a clue which is guarded by thousands of soldiers and worry they cannot succeed apart.
Genres
- nyt:series_books=2010-05-01
- New York Times bestseller
- Family secrets
- Brothers and sisters
- Juvenile fiction
- Ciphers
- Fiction
- Code and cipher stories
- Adventure stories
- Orphans
- Mystery and detective stories
- Children's fiction
- Treasure hunt (Game)
- Adventure and adventurers
- Families
- Inheritance and succession
- History
- Genealogy
- Cryptography
- Familias
- Geneología
- Family life
- Historia
- Ficción juvenil
- Criptografía
- Spanish language materials
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About the author
