Rewind by Heather Long

Valda is trapped, but far from alone. Andreas, Hatch, Oz, and Dirk are all fighting to stay at her side as they work their way through a puzzling prison. The greater struggle for Valda is rebuilding the trust between the five of them.
She doesn’t have their memories, but her guys have proved they’ll start over again as many times as needed. When Oz discovers they are on the clock, the pressure ramps. It will take every one of them working together to solve the riddling path to freedom. As they pull apart their lives to help her rebuild hers, Valda and her men will be tested.
If they succeed, no one can really tell her what waits on the other side. They’ll sacrifice everything to save her. Can she do any less?

***Previously published as Their Sacrifice by Jazz Michaels, a pen name. Now re-edited and proofed for re-release.