Author
Robert C. O'Brien
2 books here
Mrs. Frisby and the Rats of NIMH
Middle grade · ages 8–12 · 780L · 1975
A genuinely intelligent adventure where the protagonist solves problems with her mind, not magic—the rats are neither evil nor saviors, and Mrs. Frisby's ordinary maternal courage is the entire book's engine.
Z for Zachariah
Young adult · ages 12–16 · 820L · 2015
A haunting, psychologically complex post-apocalyptic novel that treats its teenage protagonist with full moral seriousness—unflinching about survival, isolation, and the fraught moment when another human appears.