With more than a million gallagher girls books sold, a legion of fans have fallen in love with the best-selling spy-girl series, and the fifth book delivers the most nerve-wracking, high-stakes adventure yet. The last th...With more than a million gallagher girls books sold, a legion of fans have fallen in love with the best-selling spy-girl series, and the fifth book delivers the most nerve-wracking, high-stakes adventure yet. The last thing cammie morgan remembers is leaving the gallagher academy to protect her friends and family from the circle of cavan-an ancient terrorist organization that has been hunting her for over a year.