Cammie Morgan is a CIA legacy and attends the premier school in the world ... for spies. The school hosts some mysterious guests with the code name Blackthorne. When Cammie is blamed for a security breach that threatens to expose the school's top secret status, she and her friends face danger to clear Cammie's name and learn the truth about Blackthorne.

Celebrate the 10th anniversary of the New York Times best-selling Gallagher Girls series with this new edition, featuring an exclusive new epilogue from Ally Carter! Cammie Morgan is a student at the Gallagher Academy for Exceptional Young Women, a fairly typical all-girls school-that is, if every school taught advanced martial arts in PE and the latest in chemical warfare in science, and students received extra credit for breaking CIA codes in computer...