Only one way out

Yeah, I don't blame you. Going down a dark shaft like that just seems stupid. I mean it could go on forever and who knows what could be lurking down there. Just as many adventures take place in the light as they do in the dark. So anyway, you begin to crawl down the shaft. The air is getting warmer and the light is getting brighter and brighter with each "step". You are feeling confident that this way is a good one. You eventually come across another vent. You look down through the gaps but you can't make out much. There seems to be a sofa and a fish tank but that is all you can make out.