Phoenix Freed - The Phoenix Series, #3

A proposal. A sibling. An enemy that never gives up. Daughtry has been to hell and back with a man who will never leave her side. With Cody in her life, she's the happiest she's ever been. Until her sister, Alex, arrives at the Colony. Finally, Daughtry's dreams of a family seem to be fulfilled - except Alex brings a whole slew of complications. She's strong, intense, and doesn't trust easily. It seems impossible for Daughtry's two worlds to merge peacefully until the Dalshie attack and Alex steps up, providing the first measurable hope of eliminating the Rengalla's most brutal enemy.
If Daughtry and Alex work together they may finally be able to stop the Dalshie once and for all.