Hey a Prime Brothers story, I was excited to read one of these, and you didn't disappoint!
This was a great story, your prose is clean, neat, and easy to follow. I think there's some wonderful imagery in there, I loved: "It gestured with a metal claw," ... "the rafters echoed with the thunder of their steps." Wonderful stuff.
The only issue I would say I had was keeping track of who was talking. Perhaps that was the point, but for some reason I was lost a bit and needed to do a few double takes. The dialogue itself is really well written, I think it just needed a few more dialogue tags is all.
Great work, and wonderful read.