"Reversed hyperspacial subtension. Rassilon invented the quantum theory of TARDISes being bigger on the inside, guess he's just reversing that! We need to find the door!"

He pulled out his sonic and waved it along the walls. Each stayed the same, smooth or with the Old High Gallifreyan text, but no percievable entrance. No, of course Rassilon wouldn't make it easy, why would he want it to be easy?

His eyes went back to the sayings on the wall. The loser shall win and he who wins shall lose. The riddle of the immortality within the Tomb, wasn't it? But why would it be out here, in the hallway?

"I've got it."