It's an impressive effect; the Hollow regards the glow for a moment, intrigued.

"Yeah? You have?"

He elongates. Mass exuding out from him, long spindly legs erupting from his back and torso and everywhere. Before long there's a great big spider monster with clawed legs in front of her, a great gaping mouth at the center of its arachnid body. It looms over her, abruptly a lot larger than it was a few seconds ago.