In the dimly glowing cavern, Ashlynn's mind worked rapidly as she tried to find a way out of this nightmare without doing as the ghostly Frost Walkers demanded. She wasn't sure what the floating glyph the Frost Walkers had conjured would do to her, but if they wanted her to 'give energy' to their work, she had no faith that they would stop at a point that was healthy to her.
They wouldn't wait for Hauke to recover on his own and instead seized control of his body. That told her everything she needed to know about these 'ancestors' and their respect for the living. Nyrielle had warned her several times that overdrawing sorcery could leave her an aged and withered husk and she feared that these ghosts wouldn't stop using her energy until there was nothing left of her to give.