Alcatraz vs. the Evil Librarians

Humorous middle-grade fantasy (non-Cosmere) about Alcatraz Smedry, a boy who discovers that his family's "Talents" (his is breaking things) make them warriors in a secret war against Evil Librarians who control the world. Yes, literally librarians. It's absurd, meta, and full of fourth-wall breaks.

Six books total — the last one (Bastille vs. the Evil Librarians) was co-written with Janci Patterson. Not typical Sanderson fare, but shows his range and humor.

Start here if you like: comedy, middle-grade fiction, meta humor, Terry Pratchett-style absurdism, or you're looking for something for younger readers.