Andy and Terry are trying hard to write their next book but they are constantly distracted by the many animals and special rooms in their thirteen story treehouse. Interest Level: 3-6 Reading Level: 3.8 ATOS Book Level: 3.8 AR Interest Level: MG AR Points: 1 AR Quiz: 157839EN Reading Counts Level: 3.2 Reading Counts Points: 5 Lexile Measure: 560. Teaching Books: https://school.teachingbooks.net/tb.cgi?tid=38173#Share.