Lost in the Echo

This series just keeps getting better and better. Each book building on the last, in this one we finally get a few answers, including the last words of the book.

In this one, Refuge starts out fairly peacefully - a welcome respite from the dark and ash of the previous book. Frost decides the town needs heavier weapons in case big bads like the ash monsters come back, and the only place that might have what they need is the abandoned National Guard depot on the edge of town.

But is it really abandoned?