When Thump thumps Plunk's doll Plunkit, an argument starts that their mother resolves. My First I Can Read Books Series Interest Level: K-3 Reading Level: 1.0 ATOS Book Level: 1.3 AR Interest Level: LG AR Points: .5 Reading Counts Level: 1.2 Reading Counts Points: 1 Lexile Measure: 210.