Slipper the cat is mistakenly left behind in the commotion when the lady she has always lived with moves in with her daughter's family, so Slipper sets out to find someone new to adopt. Interest Level: K-3 Reading Level: 2.9 ATOS Book Level: 3.3 AR Interest Level: LG AR Points: .5 AR Quiz: 161741EN Reading Counts Level: 3.7 Reading Counts Points: 1 Lexile Measure: 770 Lexile Code: AD (Adult Directed).