Any ideas what would make a dwarf child seemingly impervious to damage?
I took a long break from DF, but recently went back. I thought I was having a good run: hadn't quite set up the military yet and the fortress defenses were perhaps not as good as they should be, but I had an above-ground walled in area for foreign crops, fortifications on top of the wall, a spiral runway descending to a depot, a well fed by an aquifer, and plenty of underground pastures, so the dwarves could at least hunker down and survive an invasion. First vile force of darkness lost their leader to serrated glass disks, which put an end to that siege very quickly. And the minotaur walked right into a cage trap.
Then the second siege happened, right as the dwarf caravan showed up. I tried to keep the gates open a while for the wagons to make it inside, but when I saw the wagons were already being slaughtered, I shut the fortress up. Glass disks did some damage to goblins, but didn't break the siege this time. Goblins slaughtered every animal they could find and then just hung around... so I came up with a plan to lure part of them into a trap, but this required opening the main gate temporarily and then closing it.
It got jammed. Goblins and trolls swarmed the fort and started slaughtering every last dwarf, including the babies.
... Except two. The mayor was badly wounded and had crept away somewhere to rest, and the goblins didn't know where he was yet. The other was a child; I watched her creep out of hiding, trying to make it to a food stockpile, then running away as a goblin pursued her a short ways. This happened several times, then at one point she made it all the way out to the main fortress and fled down some stairs. Goblins surrounded her and attacked her, but... her health status was "stunned", "hungry", "thirsty", "drowsy" and "unhappy".
She was only a year old and born in the fort, so I don't think she was a vampire. Combat reports were showing goblins armed with silver maces and scimitars swinging and missing, repeatedly.
So were the goblins just incompetent, or is there some other way a kid could be invincible?