Masterminds

From author Gordon Korman's website:

Eli Frieden lives in the most perfect town in the world: Serenity, New Mexico. Everyone has a great house, with a pool. Money problems and crime are unheard of. Honesty and integrity are valued above all else. The thirty kids who live there never lie. They know it’s a short leap from that to the awful problems of other, less fortunate places.

Eli has never left Serenity … until, one day, he bikes to the edge of the city limits and something so crazy and unexpected happens that it changes everything. Eli convinces his friends to help him investigate further, and it soon becomes clear that nothing is as it seems in Serenity. The clues mount to reveal a shocking discovery, linking their ideal community to some of the greatest criminal masterminds ever known.