Following the trail of beeps he quickly walked through the rubble and the tiny kitchen out to the street. "It pretty much can track anything Fred, so long as whatever I am tracking isn't actively shielding. something's off however. It's tracking something, but it more like its looking for a... Never mind, there they are up ahead." The Doctor slowed to give Fred a chance to catch up. He pocketed the device for now and closed the distance to the doctor and Millie.