Engineering Destruction

Filthy green lightning belching from the very maw of hell! That's the last thing I saw before the ratmen overran our barricade. If it wasn't for Rorrik pullin' me out of there they'd be gnawing on my bones for sure! By Valaya's orbs, how does a ratman build siege that fires green lightning? I've been experimentin' with siege since I was a shortbeard but I've never seen its like before. If I could figure out how they built these contraptions I might be able to devise a way to stop 'em. What are you daft? I'm not expecting to get my hands on one of them weapons but if I were to see how they were built, maybe see what type of tools they used to build 'em that might be enough.

Search for the Skaven tunnels near the Sundered Fortress in West Praag. Find Engineer Skalkin and kill him to recover his Engineer Kit. Then, use the kit to examine it.