The Master froze at the sound of The Doctor's voice, in mid-step. He let out a sigh - whether it was of relief or pleasure was anyone's guess - and slid to face him.

He was impeccably dressed and groomed as always, but there was something not quite right about him; not just the large blood clot in one eye, he looked leaner, hungry. He grinned.

"Are you inviting me in?"