Scaredy Squirrel plans to celebrate his birthday, quietly and without any unnecessary surprises, by himself, but a surprise find in his mailbox inspires Scaredy to increase his guest list to two. Interest Level: K-3 Reading Level: 3.3 ATOS Book Level: 3.3 AR Interest Level: LG AR Points: .5 AR Quiz: 143067EN Reading Counts Level: 2.8 Reading Counts Points: 1 Lexile Measure: 660 Lexile Code: AD (Adult Directed) Guided Reading Level: K.