I embarked on a desert volcano, hoping to make a beautiful aboveground glass city in the middle of nowhere. Clouds of blinding sand popped up like, every 40 seconds or so, and I settled on building a cavern-level fort (this has the same properties as a aboveground fort, just, you know, in the caverns.). All was going well, the first couple of years. I managed to get 30 dwarves (I suck at managing more than that) and sealed them from the Surface World, permanently (had a airlock-deal for caravans). I had a good section of the caverns walled off from all creepy crawlies, flying or no. I noticed that this cavern level was filled with plant and tree life. I only lost two dwarfs due to a giant bat getting locked in. All seemed peaceful.
Then, everything changed, when the Fire Gopher (FB) attacked.
It popped up at the western side of the cavern. I thought nothing of it, due to my fort being sealed off. The Elven traders that I had, I allowed to pass through an airlock-system to the Wilds in the cavern. They ran right into the Gopher's path. It blew flames in what seemed like all directions. The elves didn't stand a chance. I thought it was over. Then, the flames spread, and Dear God, all of the plantlife in the entire cavern was extinguished in a matter of minutes. And that damn gopher survived.
Now, I am trying to figure out a way to deal with Mr. Gopher, and seek out revenge. Wish me luck. ^_^