Pipes Inside Walls

is an item that can be researched with the University built.
==Description==
A surprising discovery: inside the masonry, you can create a cavity to put a pipe. Through the pipe, something may be delivered. On your enemies' heads, for instance.
==Effect==
Gives "Boiling Oil" passive skill for all the stone Fortifications: Skill activates automatically Deals 120 damage to enemies under the pipe and 40 damage to enemies on either side of the pipe 50s cooldown
==Strategy==
Category:Research