The Castle of Lungs has decreed that a new settlement be made, in the nearby sinister badlands. Ores are rumored to be rich, and is worth the risk to travel into an evil land. 7 lucky dwarves gather their equipment, and head off to glory.
Calling the settlement Rashkez, or Deathnegated, the dwarves arrive.
A small hole in the ground is dug for shelter, and supplies moved underground. A small milita is equipped with basic gear, and ordered to train near the entrance to the cave.
A flock of ravens flies into a fiendish ash cloud, which thralls them and contaminates them with ash. The ravens attack the pack animals, killing one and turning the other into a thrall.
The thralled animals run into the cave, killing 3 dwarves, thralling another 3, and sending the remaining one (a proto-noble) running into the wilds... Directly into an ash cloud.
Reclaim!
A milita of 2 sworddwarves and 2 axeswarves are given copper gear, and 2 masons are brought along to attempt to take back the fledgling fort.
An ash cloud hovers nearby, and suddenly overwhelms the dwarves, instantly thralling them all in one fell swoop. (Seriously, the ash cloud spawned 5 tiles away, and hit right after I unpaused.)
Reclaim! (again)
Same setup, milita is grabbing their gear when thralls spring from ambush. (An ambush, curse them! x3) Everyone is killed or thralled nearly as fast as before.
I'm starting to think I need to find another place to set up camp.