Castor is a little bewildered by Julian's reaction, but he didn't expect anything different. He holds steady, determined to help howsoever he can. "Well you've got a leg up on me, then," he says lightly. "I barely ever left home before this. Culture shock, innit? You'll get used to it, sort of." He raises his eyebrows slightly at Doctor. "Nice to meet you," he says. "Sorry, I don't really know how to answer any of that, I'm just... I mean, I can take you to those people I told you about, if you want." He feels like he's babbling plenty himself, but at least Julian is a little too distracted by his predicament to be bothered by that. That's something.