Amy Cahill knows her family needs to be prepared for the next Vesper attack, so she organizes a training weekend at the brand new Cahill command centre. However

The fifth of seven brand new 39 Clues stories, leading up to one explosive reveal. Amy Cahill knows her family needs to be prepared for the next Vesper attack,

The sixth of seven brand new 39 Clues stories, leading up to one explosive reveal. Dan Cahill loves hanging out with his new friend, Atticus Rosenbloom, a child

The Vespers are looking for new recruits and have targeted a few candidates: the Cahill children on the hunt for The 39 Clues. Uncover the Vespers' chilling pla

The holidays can be hard for any family, but they're particularly tough for the Cahills. Amy Cahill is exhausted from her training. Dan can't forget the tragedi