Spy Camp (Spy School) - Stuart Gibbs
Excellent follow up to Spy School. I thought it was the perfect combination of humor and adventure. Gibbs did an excellent job of plot pacing and character development. Loved the addition of a few new characters. Ben, the main character, is quickly becoming a favorite.

In this installment Ben and his friends at Spy School find out they don't have the summer off but get to attend a CIA run spy camp that for Ben is like a nightmare. In the meantime Ben gets an ultimatum from the bad guys in SPYDER to join them or die.