"It's..." The Master shrugged. "I don't know, to be honest. Just. Oh, perhaps the number of books I haven't read here, and not a clue where to start."
He looked up at the Doctor, and grinned, sauntering into the TARDIS, looking around the console room with a faint air of amused dissapointment. "Messy and haphazard as ever, aren't you, Doctor?"