Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.2
Points
1.0
Fiction/Nonfiction
Fiction
Word Count
4078
Points per Word
0.000245
Page Count
54
Points per Page
0.018519
Description
Batgirl (Barbara Gordon) and Robin (Tim Drake) attend a Halloween costume party at Graves Mansion, the home of an eccentric collector of Halloween artifacts, dressed in their superhero identities. When the lights go out and come back on, the priceless Black Cat Diamond is missing, stolen by Catwoman. With many guests dressed as superheroes and supervillains, the young crime fighters must identify the real villain among the impersonators to retrieve the stolen diamond.