The Master froze at the last question, his whole body tensing. He didn't like to think of the fact that he was once living in the Rani's TARDIS and now she was long gone and he was stuck in some lousy flat.
"I was staying with...a close friend," he said, his voice lacking any emotion. "Until recently. She's gone now. What does it matter to you?"
There it was, the anger. The anger that he often used to cover up any other emotion.