I embarked on a volcano only to find out that the volcano crater is already occupied by a kobold colony (probably my most interesting embark site ever). There are kobold tunnels and structures both in and above the magma, and while some are flooded most of the submerged tunnels are fine and inhabited by kobolds. As a result the crater has a number of "floating" platforms that are part of the kobold colony. The kobold colony is cut of from the outside world by magma, and most kobolds hide deep in their fortress. The platforms are not accessible to me and there is no threat of immediate conflict. I manage to set up a starting fortress in a separate kobold tunnel that is accessible to me, but not too the kobolds, allowing me to quickly move my food underground.
This is when the face palm happens. Three purified goblins show up only weeks after embark (goblin spellcasters, lands of duality mod). They attack my kobold neighbours but out of precaution I order my dwarves underground in a safe burrow. Do they obey their orders, and hide in safety in the designated area?
No, of course not! Three dwarves immediately run into the volcanic caldera and start climbing the volcano walls from the inside, right above the boiling magma. A few kobolds meanwhile have emerged from their fortress and are now on the platforms fighting the purified goblins. I try to calm down, thinking that the goblins and kobolds will kill eachother and that my dwarves will come to their senses, and will head for the burrow eventually. Obviously that will happen, right?
No. Instead of being sensible all three dwarves climb the caldera walls until they are near the platforms, then jump over several tiles of magma right into the middle of the kobold fortress. They are completely unarmed and now find themselves battling two enemy forces, on a narrow ledge right in the middle of a boiling lava lake.
I do not have to explain that this ended very poorly.
Yes, that yellow blob near the goblin is magma mist, caused by one of my dwarves failing to make the jump.
No, the other two didn't survive either..