At the muffled sound of Trevor's shout, Gretchen was on her feet, before she even realised she was standing. Although logically, she knew it couldn't be anything too bad, the wards hadn't gone off and they would have if someone had gotten in, her heart was in her throat and all she could think of was Carrow.
"Stay here," she pointed at Verity and moved out of the room. "Trev?" she called in a forcedly casual voice, silently climbing the stairs and wishing she'd grabbed her wand on the way down. "Alright?"