“Oh, yes, you’re right,” The Doctor spoke up. “That’s exactly what he did last time. Possessed a human — waltzed around in his skin while he plotted to come after me and steal my regenerations. Typical for that bloke. Ever since he ran through his thirteen lives he’s been trying to leech off of me.” he told Rose. “Good news is I’m not exactly in the middle of, you know, dying or anything right now, so I should have time to hunt him down!” he continued. “Trouble is, I still don’t know which way he went…” he mused, still scanning around with the screwdriver only to not get any results.