Saving Eden — Rachel McClellan

With Max and Colt taken by the Institute, Sage is desperate to get them back. So when the leader of the West resistance shows up and offers her a deal she can't refuse, she eagerly accepts. Finally, she is in a position where she can exact revenge on Ebony and the Institute, while also saving the people she loves. But deals have consequences, and she only has so much time to fulfill her end of the bargain.