Reading Metrics
Grade Level
Middle Grades Plus (MG+ 6 and up)
Book Level
5.7
Points
8.0
Fiction/Nonfiction
Fiction
Word Count
52294
Points per Word
0.000153
Description
On her 12th birthday, Cecilia becomes lost in a dark world beneath London. Afraid and alone, she sets to work on her escape and soon realises that perhaps there is a reason she and the mysterious marble her sister gave her are so far from home.