Mission: Destroy All Boys: Mission series (book one)

At the highly selective, Educational Institute For Field Espionage in Minors, leaving school is a strict no-no. When Audrey Michaels receives special permission to leave with her father, she knows something's up. Strange disappearances are happening within the schools walls. Her mother, new sworn enemy and several of the CIA's top female agents are all gone with only one lead. With the help of her best friends, Audrey is determined to find her mother, but it's harder than she thinks, because at the end of the day, spy school is still school and that boy hasn't changed one bit.