Outcasts by Jill Williamson

Uncovering the truth could cost them their lives.

Since entering the Safe Lands, Mason has focused on two things: finding a way to free his village from captivity, and finding a cure for the disease that ravages many within the walls of the Safe Lands. After immune-suppressive drugs go missing in the clinic, Mason discovers his coworker, Ciddah, may know more about the Safe Lands than imagined … and may have an agenda of her own. At the same time, Mason’s brother Levi is focused on a way to free the remaining Glenrock captives, while Mason’s younger brother Omar decides to take the rebellion against the Sale Lands into his own hands as a vigilante.

Soon all three brothers are being watched closely—and when Mason stumbles onto a shocking secret about the Safe Lands meds, his investigation just might get those closest to him liberated.