This was probably my favorite GG book. Warning it ends in a cliff hanger. Cammie is spending summer vacation with Bex & her parents. They are trying to Cammie safe from the Circle. But how does Cammie know who to trust? And where's her mom? It's hard to know who to trust when people are trying to kill you. Double agents, triple agents, it's hard to be a teenager when expected to think like an adult. GG keeps getting better & better.