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.

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.

Lost in the North Woods, Margaret and her shy, mute brother, RT, are saved and nurtured by the rats of NIMH, but a return to civilization could mean the end of the world of NIMH should the children divulge the secret of their rescue.

In this gripping and memorable middle grade fantasy from Newbery Medal–winning author Robert C. O’Brien, good and evil are locked in battle and the balance between the two can only be restored by one young girl’s determination to set things right. “It lay beside her on the pillow, shinier than silver, glowing softly, with twinkling blue stones set all around....It did not occur to her to wonder from whom it had come; she was merely aware that it was hers by right.” Ellen awakens one morning with a mysterious silver crown on the pillow beside her. What magic powers it possesses she has not yet discovered, but the sudden changes in her life are unmistakable: her house is burned down, her family has disappeared, and a man in a dark uniform is stalking her. Can Ellen ever find her family? Can she use the power of the silver crown to thwart the powers of darkness? What diabolical force hides inside the mysterious castle in the woods?