Night Betrayed (Envy Chronicles #4)

The Change that devastated the earth made Theo Waxnicki something more than human-eternally young and beautiful...but not immortal. When he dies on a mission against the Strangers, he is lost to the darkness...until a miraculous healer brings him back.

Born as the world fell to ruins, Selena has dedicated her life to easing others' pain. Her tender touch awakens new life in Theo-and new desire. But joined together in a world of terrors, the lovers' secret pasts make them vulnerable to danger. And love is the deadliest trap of all.