The sewer entrance was shrouded by vines and foliage, and loomed ahead like a portal to hell. Though, that was just from the perspective of a fly. For a human, it was not bigger than a floor tile. The darkness to which the entrance led to, though, wasn't the major problem there. It was the smell.
The smell hit them right away. It was a disgusting smell that made their throats gag and eyes water.
It smelled like a thousand dead bodies left to rot in a nasty pit with sewage. The air was so thick; it felt gross to breathe. The breeze that sometimes passed through the leaves seemed powerless, only swirling the stench around as if it were a cruel prank.
It was the kind of smell that made you wish you could stop breathing altogether.
<Well, it's not like I could expect something else.>