The fifth book in the Gallagher Girls series, which has sold millions of copies, is set in an elite school for spies. Ideal for fans of XO, Kitty.

You might think that being the target of an international criminal organization would make people look at you. But try holding a boy's hand.

The last thing Cammie Morgan remembers is leaving the Gallagher Academy. When she wakes up in an alpine monastery with no memory of the past four months, Cammie and her friends must travel around the world to piece together the clues she left behind, in a desperate race against time to uncover what she did last summer.