"No," Oliver agreed. They would know if there were on the Plane. "But has anybody told you about mergers before?" Granted, he didn't know much about them himself, but he'd at least heard them mentioned, and nothing shouted "our universes are crossing over each other" like this situation. Earth and Gondovan at the same time! It didn't make any sense.

"Or maybe it's a transmat or something," he said uncertainly. He frowned, thinking about that. Wouldn't you know if you'd been transported somewhere? And that didn't explain why this place was readily visible when you left town. "Hang on," he said, a realisation striking him. "People in town have been talking about this place--that's why I came here--so I'm not the only one who can see it. This spot definitely isn't Gondovan, though." He took a few steps in place, feeling the soft grass beneath his feet. Definitely definitely not Gondovan.

But Jamie started looking for the Doctor then, and Oliver reacted before he could think, feeling a bit frantic. "N-no, that's all right! We can figure this out!"