Blue nodded to the description, settling it in her mind so that she could focus on any person that she saw and easily pass them by as a match or not. She'd like to think that the Old Man would be proud.

She took off from the Doctor's side, the illusion shifting away from the form of a human girl to that of a canine, and the half-wolf sniffed around, checking out every corner and continuing to scan the area until - there! Could that be...?

Blue darted to where the woman lay trapped, licking at her face and jerking up her head to bark loudly at the Doctor to get his attention.