"When Raffa makes a cure from a rare crimson vine he finds deep in the forbidden forest, the bat he saves transforms into something much more."--OCLC. Interest Level: 5-8 Reading Level: 5.3 ATOS Book Level: 5.3 AR Interest Level: MG AR oints: 9 AR Quiz: 180668EN Reading Counts Level: 4.3 Reading Counts Points: 14 Lexile Measure: 700.