"Different points in time?" That's a lot bigger than any his original consideration. There were civilizations with transporters. He could stretch his mind, cross a couple hundred wires, and come up with a reason somehow the Tardis had been affected. But. Several timelines.

That would be something much, much bigger. More unstable, and outside the natural order of things.

"So it's localized to here, but they may have no more control over than the people arriving." Ten was talking, while considering the few points that looked like computers in the room already. "Rough guess, how many people have been pulled through to this place and time?"