Spy School Revolution (Spy School #8) - by Stuart Gibbs
Young Readers, 8-12yrs
With SPYDER defeated, Ben Ripley is looking forward to his life getting back to normal, or as normal as possible when you're a superspy in training. Until someone bombs the CIA conference room next door. To Ben's astonishment, the attacker is none other than Erica Hale, the spy-in-training he respects more than any other.
His mission: prove Erica is not a double agent working against the US, locate the fabled colonial-era insurgent group that's blackmailing her, figure out what their devious plot is, and thwart it.
But this time, Ben finds himself up against opponents he has never encountered before: his own friends. How can he succeed when he doesn't even know who he can trust?