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

Dan Cahill loves hanging out with his new friend, Atticus Rosenbloom, a child prodigy whose genius IQ doesn't stop him from playing video games or practicing ni

Time is running out for Grace Cahill as she struggles to make the most important choice of her life: a decision that will shape the future of the Cahill family

The second of seven brand new 39 Clues stories, leading up to one explosive reveal. Think you know what happened at Grace Cahill's funeral? Think again. This to

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