“Rose Tyler…” Eight echoed slowly, as if testing the words on his lips. He paused for a moment to think, trying to remember what that name could’ve meant to him. “No, I’ve got nothing.” he replied, a bit apologetically. “Sorry, you see, ever since I last regenerated, my memory’s been a bit rubbish. You’ll need to give me a bit more than that.” he told her, hoping to get a bit more information to jog his memory. Though, if she knew what regeneration was, that would imply that she’d most likely seen him regenerate once before. So, that at least narrowed things down a bit. And while he still wanted to solve the mystery in front of him — partially out of guilt for forgetting a former companion and partially out of sheer curiosity — another piece of Rose’s words stood out a bit more strongly to him, grabbing his attention. 

“Oh! Hold on,” he spoke up, once again before Rose had a chance to answer his first response. “You said ‘[i]this[/i]’ universe,” he continued, thoughts clearly flowing in his head. “Does that mean… Have I landed in an alternate universe?” he asked, glancing uneasily towards the TARDIS console. “Astonishing…” he whispered under his breath. The poor old machine must’ve been shaken up worse than he thought. “Oh! Wait! I remember leaving a girl like you in another dimension like this.” he spoke up, his attention once again fixed on Rose as more memories started coming back to him. “Yes, that’s right, a young blonde, just like you — I remember now!” he grinned, a clear image finally forming in his brain. “I left you on the border of E-Space with those catlike time-sensitives, right?” he asked, though he seemed fairly confident in his answer. “Is K-9 still with you? How’s he doing these days?”