Project Gemini: Mission 2: Okinawa by Jill Williamson, Spencer learns that his next Summer mission will take him and his fellow agents to Okinawa. There's no time for relaxing at this tropical paradise.Spencer must attend school, volunteer at a local martial arts training facility, and track and report a mysterious girl named Keiko. The more he learns about Keiko, the more questions he has. Paperback, 380 pages.