Bex's passion for urban exploration is challenged by Kieran, a fearless new kid at school, who embarks on an extreme adventure that could put both of their lives in danger. Interest Level: YA Reading Level: 3.7 ATOS Book Level: 4 AR Interest Level: UG AR Points: 2 AR Quiz: 147613EN Reading Counts Level: 4.3 Reading Counts Points: 7 Lexile Measure: 570 Lexile Code: HL (High-Low).