6 books in seriesAll books published

The 39 Clues: Cahills vs. Vespers (Spin-Off)

The 39 Clues: Cahills vs. Vespers (Spin-Off) is a 6-book series with 6 released primary works first released in 2001 with contributions by Gordon Korman, Jude Watson, Peter Lerangis, Roland Smith, Linda Sue Park, and David Baldacci.