5 Books Found

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Based on your description:

"a book about a world where there are limits to how many children you can have and the protagonist has to hide"

August 9, 2026

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Likely answer

Dystopian Fiction Featuring Shadow Children and Population Laws

Among the Hidden by Margaret Peterson Haddix is the confirmed novel. It follows Luke Garner, a "third child" living in a world where the Population Police enforce a strict two-child limit. As an illegal human being, Luke must spend his life hiding until he discovers another shadow child living nearby, leading him to question the government's oppressive control and the risks of coming out of hiding.

Confirmed match: Among the Hidden by Margaret Peterson Haddix