Draven's office.
It wasn't just a vague notion or desperate guess. She had been there once before, during a particularly intense lecture when Professor Draven had called her and a few others for a private demonstration of magical artifacts. She remembered the glowing crystal set on his desk, a means to contact him or his assistant in case of emergencies. The memory was so clear now, even as the tower crumbled and monsters clawed at its very structure.