Immurement (The Undergrounders #1) by Norma Hinkens

Immurement: The Undergrounders Series Book One (A Young Adult Post-apocalyptic Science Fiction Thriller) - Norma Hinkens

It is the year 2069, six years after the Earth’s core overheated, causing a meltdown. In the Sawtooth Forest of central Idaho, a group of survivors has formed an underground community which is split up between 8 bunkers that are connected by a shared tunnel. These are the Undergrounders.

 

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