There was another one out there.

The TARDIS gasped, and shuddered, and tried to wake her Doctor, but he had not slept in several weeks and was out so thoroughly she could not wake him. He hadn't set her to hover, though, so she could go, and she did, whirling through the sparkles of time and space to land… in a school parking lot?

She was puzzled, then shrugged it off, because there he was, standing across the asphalt, all yellow and black and it didn't matter what he looked like because she wasn't alone anymore, she wasn't the last.

They were not alone.