Operation Trinity (The 39 Clues: The Cahill Files, Book 1)
Series
- The 39 Clues: The Cahill Files - book 1
Genres: action-adventure, childrens, coming-of-age, law, mystery
Recordings
Narrated by David Pittu
- Runtime: 3 h 37 min
- Publisher: Scholastic Audio Books
- Released: 2012
- ASIN (us): B007PSX642
- 12 chapters