[ By the time Zhou Zishu wanders back over to him, the Doctor's collected a fair amount of sticks that look like they could work as fire starter. Unfortunately he's also made a mess of things in the process — from the way things are strewn about, it's clear he's gone about the process haphazardly and without much of a care or thought about who's going to pick up after him (spoiler alert: it probably won't be him). ]

Nope, got one.

[ He's putting the finishing touches on his little fire set up, rocks barrier and all, and pulls out his sonic screwdriver with a bit of a wave. ]

Well, maybe. [ There's a bit of a glower here. ] It hasn't been working properly since I've gotten here. If it doesn't work we'll do it the old fashioned way.