Thea no longer cared about what Genevieve had previously told her. She only cares about those closest to her who are trying hard to hold back the arrival of the barbarians from inside and outside the walls of Xaera Palace.
Thea was worried, watching the visibly overwhelmed Marc battling a group of barbarians outside the back door of Xaera Palace alone. Thea summoned the spirits to help them fight the barbarians because, from one of Genevieve's stories, the way to fight barbarians from coming back alive after they fought to the death was to ask the shadow souls for help.