Yeah, that's all my handiwork. You're looking at the tomb, living quarters and offices of Urist McKiwi II, now claimed by her "zombie decoy", Urist McZombie (unless McZombie got killed, in which case it's a rather nice set of free rooms you could give to a lesser noble or something). Above that is the old dining room of McDonald.
There's actually quite a lot of those hatches around the place, since I explored the magma sea by drilling holes down into it from above. I used hatches as a temporary seal and forgot to tell anyone about them. You might wanna check the other levels of the mining complex, since there's other hatches that are just as dangerous (one Z-level above that screen should be the passage to the second candy spire. Take a look around it). That said, a swarm of hellspawn erupting from a volcano would be kinda boss.
I'm not sure I connected the drawbridge between McZombie's office/rooms and the narrow passage. I definitely connected the one between the tomb and the store-room though. It was McKiwi II's little hidey-hole in case I breached the HFS by accident.....although without both drawbridges functioning it's more of a deathtrap than anything else.
All the rooms are owner by Urist McZombie. For whatever reason, the tomb belongs to Urist McZombie too, which suggests McKiwi II was never buried there. I believe two of the drawbridges are connected, so the room can be sealed off. However, the tomb has no defences in case of HFS attack.
We've had a forgotten beast attack from Usu, a gigantic firefly with a trunk and poisonous vapors. I'm going to put this in a full report at the end of my turn, so you can quote it from there. All squads were called to attack the beast, but the new barracks was nearby, and it was eliminated quickly. No dwarves died, but a lot ended up with severe drowsiness and bleeding. Some of the corridors got covered from ceiling to floor in blood.
I've freed the sane vampires and put them in a special burrow to prevent drainings and insanity from lack of clothes. The furnace operator has been there for many years and will work slowly, but walks at about the speed of other dwarves, so I believe it is best to assign them to military ops. Be aware that putting dwarves on an alert burrow will negate the use of the vampire burrow, and allow children to wander around freely. We could do with a DFhack script to "assign all dwarves to burrow" instead.
Mining work is now upgrading New Townbrush. Some new store-rooms will be installed, and we may get a water supply and minecart network. No guarantees though, I'm trying to finish quickly at 15-25 FPS.