Elena is a teacher at a new elite school. Her daughters are like her: beautiful and ambitious. A good thing since the recent mandate is all about perfection. Everyone must undergo routine tests and any children who don't measure up are placed into new schools. When one of Elena's daughters scores lower than expected, she intentionally fails her own test to go with her. But what Elena discovers is far more terrifying than she ever imagined... From the bestselling author of 'Vox'.