Iron Butterfly Series

Thalia knows three things: her first name. That she barely escaped the clutches of the Septori with the help of a mysterious stranger. And that her run-in with the Septori's iron butterfly machine did something to her. It changed her into something neither fully human nor Denai. Fearing her inner darkness and seeking answers to her past, Thalia finds refuge as a servant at the Citadel in Calandry, a school for the gifted Denai.  

After finally settling into her new life at the Citadel, Thalia is reunited with her father, Bearen, the leader of the reclusive Valdyrstahl Clan. Forced to leave the school and return home to the snowy mountains, Thalia is surprised to find she is engaged to a man she doesn't remember. When she rejects the betrothal, her father organizes a tournament for her hand in marriage.    

Every journey has an end. Unable to find the answers she sought in Skyfell, Thalia, Joss, and Kael travel to Haven with a prisoner in tow. An attack on the road waylays their plans, and Thalia finds herself traveling alone with Kael to the hidden sanctuary of the SwordBrothers. But war is on the horizon and the Raven is amassing his army. This time, the target is not Calandry, but the Sirens of Sinnedor. When family ties are revealed, Thalia must choose sides.