The Doctor had grown quite tired of hearing his own voice, and constantly having to talk to himself for lack of anyone else. He missed Rose, he missed Martha, and he missed Donna. But most of all, he was still trying to get used to the new face. Landing the TARDIS yet again, he didn’t even bother to look where he was anymore. He hopped out of the TARDIS, and began to walk into the distance.
After walking for a while, he suddenly felt as if he was being followed. He stopped where he was calmly, and although he didn’t move, his eyes were moving steadily from side to side. “Hello?” he called, hopeful that it would be someone friendly.