"She talks to you?"

"Sort of, yeah. Not in words, of course, but she can make herself understood."

"But only to you?" Rose was intrigued by the idea of a living ship.

"Yeah." His face fell for a moment, before the manic grin reappeared. "But we're a special case."

"How d'ya mean?"

"For a start, we've been together for over 700 years. Most Time Lords would never have used a TARDIS for more than one journey. They'd never get to bond."

"And?"

"Normally she'd be able to communicate with other TARDISes. But now... "

''Now there's just you."

"Just me."