The 39 Clues: Doublecross Book 1: Mission Titanic - Library Edition
, by Watson, Jude- ISBN: 9780545767194 | 0545767199
- Cover: Hardcover
- Copyright: 2/24/2015
Never turn your back on the Cahills . . . The most powerful family history has ever known returns with a vengeance in The 39 Clues: Doublecross!