"Fel magic is..." she starts, looking away from him. Even she's not entirely sure. That kind of knowledge is usually restricted to those who use it, and she would walk across a field of caltrops than touch a fel tome.

"Fel magic is the opposite of the Light. The Light grants strength to life and creation," she explains, still averting her eyes. "Fel magic draws strength from death and chaos. It is evil in its purest form. And the Legion mastered it long ago."