Unwavering Victory

Iain Fraser thought he understood his life. Then the brother he didn't know existed turned it all upside down. Everything he has built, everyone he cares about, is under attack. And every choice he makes to defend it seems to be the wrong one. It's time to go on offense, but it's hard to take the fight to the enemy when you can't find him. Cassandra Michaelson has been in a protective limbo since her husband was killed.
Victory has been her entire focus, a cocoon wrapping her up, keeping her safe but also confining her. Fighting Iain's brother, the man who stripped that protection away, has awakened her again-and made her see not only that she doesn't have to be alone, doesn't want to be alone, but also that she wants far more. She wants to fly again. And she wants to fly with Iain. Iain has always been waiting for Cassandra.
He hadn't put his life on hold-in fact, he'd thought he was building something new, away from Victory and from the partnership that shattered when his best friend was killed. But Cass refuses to stay away, stay safe, and now they must work together to trigger their enemy's end game. What they can be after that will have to wait until-and if-they survive it.