When Cammie Morgan enrolled at the Gallagher Academy, she knew she was
preparing for the dangerous life of a spy. What she didn't know was that
the serious, real-life danger would start as soon as her junior year.
But that's exactly what happened two months ago when she faced off
against an ancient terrorist organization dead set on kidnapping her.
Now the danger follows her everywhere, and even Cammie "The Chameleon"
can't hide. When a terrifying encounter in London reveals that one of
her most trusted allies is actually a rogue double agent, Cammie no
longer knows if she can trust her classmates, her teachers -- or even
her own heart. In this fourth installment of the New York Times
best-selling series, the Gallagher Girls must hack, spy, steal, and lie
their way to the truth as they go searching for answers, recognizing
that the key to Cammie's future may lie deep in the past.