The crash startles Terezi out of her search, a sudden fear gripping her. She didn't expect anyone else to be around--at least not that she's heard until now. Fraysong isn't in her immediate vicinity, so she takes off towards the entrance again, trying to find which aisle he went down. Or what made that noise.

It doesn't take her more than a few seconds to find both the source of the scuffle and him. She doesn't recognize the woman on top of Fraysong, but she does note the shaft of the spear that she has pressed to his throat. And she notes that he's not fighting back, just lying there and letting her choke him. An immediate anger bubbles up in her chest at the thought of attacking someone as defenseless as this.

"Get off of him!" she shouts. Without thinking, Terezi sprints at and tackles the woman, aiming to knock Fraysong's assailant off of him and inevitably sending them both sprawling.