Batman and the ultimate riddle [DC super hero adventures]by Steele, Michael Anthony 

BTSB Prebound(Stone Arch, 2020)

BTSB #: 845246 Available

Dewey: FAges: 8-11   
Lexile: 660 F&P: P

Genres: Adventure Fiction

Subjects: Batman - (Fictional character) - Fiction Batgirl - (Fictional character) - Fiction Robin, - the Boy Wonder (Fictional character) - Fiction Riddler - (Fictional character) - Fiction Superheroes - Fiction Adventure fiction

Summary: The Riddler is in a bit of a slump. It's bad enough that Batman and his friends have foiled him again. But what's really got him down is that he's no closer to learning the Caped Crusader's true identity. Who is the man behind the mask? To find the answer the Riddler hatches a precarious plan that turns Batgirl and Robin into pawns. Can Batman stop the Prince of Puzzles before he solves the ultimate riddle?

Riddler's battleship blitz [Batman & Robin adventures]by Bright, J. E. 

BTSB Prebound(Stone Arch, 2017)

BTSB #: 151732 Available

Dewey: FAges: 7-11   
AR: 4.9 MG Lexile: 720 F&P: R

Genres: Adventure Fiction

Subjects: Batman - (Fictional character) - Fiction Robin, the Boy Wonder - (Fictional character) - Fiction Riddler - (Fictional character) - Fiction Riddler - (Fictional character) - Fiction Superheroes - Fiction Supervillains - Fiction

Summary: The Riddler has escaped from prison, and it is up to Batman and Robin to decipher the riddle he has given them, discover his plans, and prevent him from carrying out his destructive plan.