The month following the Darnen invasion went about as well as I thought it would. Dwarves tanruming constantly, corpses spreading miasma through the lower levels, and injured and diseased dwarves collapsing before suffering horrible and agonizing deaths due to stravation. One of the forge masters was crippled whilst walking up the main mine shaft. Dozens of dwarves must have passed him, people he used to work with and called his friends, all of them ignoring his cries for help. Knowing that they couldn't possibly keep their old friends alive, and that it was better to let him die now rather than suffer for months in the hospital before eventually withering away.
Also one the masons was accidentally impaled on the repeating spike trap.
This brought down the population of Townbrush to 9 dwarves. 9 dwarves trying to piece together the remains of Townbrush. Then some incredibly foolish migrants arrived, bringing the population up to 14. None of them knew how to wield an axe though, so the military remained empty.
Of course, that's when a Forgotten Beast decided to pay a visit. Rifi Tofilerine, a giant skinless mole that belches toxic gas. Not exactly the most intimidating of fell monsters. Still, he announced his arrival by decapitating the new mayor. This of course was an issue because nobody in the fort can fight to save their life. And the last time I sent unskilled and unarmored dwarves to fight a forgotten beast, it resulted in the haulers having to scrape their friends corpses off the caverns walls. So I drafted 10 dwarves, and ordered them to find whatever gear was lying around as a result of the constantly goblin sieges. Right now they are scrambling through the fort trying to properly equip themselves. Meanwhile Rifi is crawling through the deep roads, mauling any poor dwarves who happened to be down their at the time.
The total population of Townbrush is now 8 terrified dwarves, and the unluckiest child in the world. I've ordered them to stand near the exit of the mines, waiting for the beast to make its way to the surface. This could easily be the final fight. If Rifi kills them, Townbrush will come to an end. There's nothing I can do but hope that one of them manages to land a lucky hit while Rifi is busy chewing on dwarven bones.