Remnants of Trust (A Central Corps Novel) by Elizabeth Bonesteel is the follow up novel to the first book The Cold Between which was previously discounted last year by Harper Voyager.
If you enjoyed the first book the second is now on sale in the US for $1.99
https://www.amazon.com/Remnants-Trus.../dp/B01BSJO4US
https://www.kobo.com/us/en/ebook/remnants-of-trust