His paws thumped back down onto the ground as the glass disappeared, nodding once at the headmaster before she walked away. He was about to step into the room, until she stirred, immediately picking up the warning signals she was giving off. He stayed still, hoping she would relax once she recognized him. When her eyes met his form, he came to the realization that she hadn't seen his form before, nor had he mentioned it to her. 

He lowered his head then lowered his body to the ground, trying to come off as not being a threat. His fire colored eyes met hers, hoping she would at least realize who it was by the eye color, it wasn't very common. He rested his head down on his paws, ears twitching slightly as the sounds of her growls. [@Arista]