The Master watched the cameras that showed the lobby, toying with his fork impatiently before taking another bite of the dinner he'd sat down to when the remodeling was finished. Where was...
A smile spread across his face, watching the revolving door start to spin. He leaned back in his seat, transferring the view of the lobby - dimly lit and small as it was now - to the large screen directly in front of him. Peeling paint over flaking plaster for walls, and a dusty concrete floor with some scraps of carpet still glued down.
He waited until they were all inside before activating the one-way com on the receptionist's desk - painted particle board and plastic, to match the rest of the decor - directly across from the door.
"Welcome to my home, gentlemen, Lady Romana. I must say, I didn't expect quite this turnout. Now, I shan't keep you long, it's a bit of a puzzle ahead of you before we meet face to face.
"As you can see, two passages to your left, one and a lift to your right, and two behind the desk. Only one of them actually leads to where I'm sitting right now. Good luck on figuring out which one. Oh, and do mind your step."
He flicked off the com, settling back in his chair to watch their progress. With any luck, there would be some entertainment to be had before he had to play the polite host.