Periodically, Mabel turns her tablet off and ignores the fact that the rest of Taxon exists. She did so after the Doctor first vanished off the map, assuming with a bit of regret that he had been sent back home and bummed because she was half-hoping he would give her a job - or at least something to do.

She turns her tablet on again, finally, just in time to see that he wasn't gone after all, and just in time to watch in horror as he's attacked. "Doctor!"