Liliana - Nearly drove Baltrice insane

“Yes, it is. You just don’t remember.” Jace looked at her, and his eyes brimmed like hers. “Liliana—what she did to you—how she beat you …”

He shook his head. “She hit you with ghosts, Baltrice. Shades. She infected you with the shades of every living thing that had ever died at Tezzeret’s tower. Even after we healed your body, the memory alone was killing you. Driving you insane.”

***

Test of Metal, The Metal Island: The Last Riddle