The case of the library monster /
Dori Hillestad Butler ; pictures by Jeremy Tugeau and Dan Crisp.
- New York : Scholastic, [2012], c2011.
- 134 p. : ill. ; 21 cm.
- The buddy files ; #5. .
- Butler, Dori Hillestad. Buddy files ; 5. .
Buddy the dog discovers a strange, blue-tongued creature in the school library, and investigates what it is and how it got there.