Human: Produce a detailed written description of a foreboding scene outside a town ruins with mosses and puddles of stagnant water. Assistant: 
This tunnel has obviously been neglected for a number of years. The mortar is falling out from around many of the bricks, some of which are broken. Much of the floor is covered with various mosses and slimes, puddles of stagnant water, and many kinds of disgusting creepy-crawlies.