[He paid full attention to her explanation. It took him a while to somewhat understand the meaning.]

We have lightnings, yes. But when we need light in the evening we use candles or fireplaces. We don't have all these lights in the cities like here. It that common for other worlds too?

[A chill ran down his spine when he thought of the possibility that there would be a fire. It would be a problem within a problem. He tried to push away the thought and asked himself, why he was suddenly getting pessimistic thoughts. It was possible but only to a small degree. At least Tyrion tried to make himself believe that this is the case.]

At least not much here can catch fire easily. Well, at least from my knowledge about the materials here. Some are unfamiliar to me so I am not sure about them. [Everything that wasn't stone or glass was unfamiliar to him.]