Year 54. Population is now 178. There was a tricky moment at the beginning of spring when I was just about to deal with a new forgotten beast and some goblins arrived to distract me from that. While I was distracted, a second FB entered the cavern, which caused the first one to find an out of the way spot and camp. Eventually the second one sniffed the first and they had a fight, which the second FB lost, leaving the first one still camped. It wouldn't move even when I opened up a clear path to my fort, which usually tempts them into my trap.
I had to send military down to deal with it (because i did want it dealt with), and then discovered that I also needed to send a woodcutter to give the soldiers access to the FB. Of course that could have been a disaster, but the woodcutter who responded to the call was adequately cowardly and ran quickly away. The FB had deadly spittle, but didn't manage to hit any of my dwarves with it, so NBD there.
We've caught another cave dragon. Yay! It's a second female. Boo!
I also uncovered a strange and alarming ... bug? I suppose? ... in which pitting a goblin renders any on-site merchants hostile. I don't understand why it is the case. The merchants can't even see the goblin at any point, but the moment my hauling dwarf releases the goblin to fall into the magma, merchants become hostile.