Displaying 1 of 1 1971 Title: Mrs. Frisby and the rats of NIMH Author: O'Brien, Robert C., author. Edition: First edition. Format: Book Publisher, Date: New York : Atheneum Books for Young Readers, [1971] Description: 233 pages : illustrations ; 22 cm. Summary: Having no one to help her with her problems, a widowed mouse visits the rats whose former imprisonment in a laboratory made them wise and long lived. Audience: Ages 8-12. 790 Lexile. Subjects: Mice -- Fiction. Rats -- Fiction. Mice -- Juvenile fiction. Rats -- Juvenile fiction. Other Author: Bernstein, Zena, illustrator. Reading Level: Accelerated Reader AR MG 5.1 8.0 ISBN 9780689206511 Place Hold Add to My List Expand All | Collapse All Find It Map It Suggestions and more Large Cover Image Librarian's View Displaying 1 of 1