It's all AU.

"...Let him stew for a minutes. We'll just keep a leisurely pace, and his curiosity will get the better of him," the Doctor finished, trying to put on a brave face for his companion before he processed they were in fact in a hotel lobby. He staggered for a moment as over four months of memories came rushing back.

Rose tried to hold him up, looking very worried, and steered him over to a chair. "Doctor, are you all right?"

"Oh, my head," the Doctor groaned as he sat, hands in his hair.

"We're not where we were a second ago," Rose whispered to him. "Transmat?"

He lifted his head, eyes wide. "Something a little stranger than that, Rose."

The Master glared at the closing doors of the TARDIS, entirely not in the mood for fake bounciness. He gathered himself up to follow his companions when he nearly crashed to his knees as months of memories slammed into him.

"No. No. This isn't fair," he hissed. He got back to his feet, flew out of the TARDIS, and was greeted with, irony of ironies, a newly once again familiar alley. "Oh, that is. That is. Not funny in the slightest, do you hear me?" he shouted up at the sky. Nearly in tears.