When Margaret and her younger brother, Artie, get lost in the woods on a family camping trip, they are rescued by rats -- the superintelligent rats of NIMH. Taken into the rat's community, the children are safe for the time being. But winter is coming. Margaret and Artie have to get back home. And when they do, they must protect the rats who have helped them. Everything depends on their silence... but it's hard to evade questions forever. Children's Choices for 1991 (IRA/CBC)VOYA's Best Science Fiction, Fantasy, and Horror 1990Parenting Honorable Mention, Reading Magic Award

Some extraordinary rats come to the aid of a mouse family in this Newbery Medal Award–winning classic by notable children’s author Robert C. O’Brien. Mrs. Frisby, a widowed mouse with four small children, is faced with a terrible problem. She must move her family to their summer quarters immediately, or face almost certain death. But her youngest son, Timothy, lies ill with pneumonia and must not be moved. Fortunately, she encounters the rats of NIMH, an extraordinary breed of highly intelligent creatures, who come up with a brilliant solution to her dilemma. And Mrs. Frisby in turn renders them a great service.

Increasingly alienated from his widowed father, Vernon joins his friends in ridiculing the neighborhood outcasts'Maxine, an alcoholic prone to outrageous behavior, and Ronald, her retarded son. But when a social service agency tries to put Ronald into a special home, Vernon fights against the move. 1994 Newbery Honor Book Notable Children's Books of 1994 (ALA) 1994 Best Books for Young Adults (ALA) 1994 Young Adult Editors' Choices (BL) 1994 Books for the Teen Age (NY Public Library) Young Adult Choices for 1995 (IRA)

A field mouse named Mrs. Brisby enlists the aid of a race of intelligent rats to save her home and her sick child.

When two brothers steal a rabbit from a back yard in the rich part of town, the incident brings about their collision with other children from a background very different from their own.

Heartbroken over the death of her fiance, Ragweed, Poppy, a deer mouse, journeys west through the vast Dimwood Forest to bring the sad news to Ragweed's family. But Poppy and her prickly porcupine pal, Ereth, arrive only to discover that beavers have flooded the serene valley where Ragweed lived. Together Poppy and Ragweed's brother Rye brave kidnapping, imprisonment, and a daring rescue to fight the beavers. At the same time, Rye -- who has lived in Ragweed's shadow -- fights to prove himself worthy of Poppy's love.

The further adventures of the intelligent young rat Racso and his friends Chistopher and Isabella as they try to ensure the survival of their secret community in Thorn Valley after its accidental discovery by two human children.