When high school sophomore Mason finds a beautiful but catatonic girl in the nursing home where his mother works, the discovery leads him to revelations about a series of disturbing human experiments that have a connection to his own life. Interest Level: YA ATOS Book Level: 4.2 AR Interest Level: MG AR Points: 8 AR Quiz: 137450EN Reading Counts Level: 4.5 Reading Counts Points: 14 Lexile Measure: 620 Fountas & Pinnell: Z.