Helwan Dam

A dam built by Professor Timori....or at least he attempted to do so....using enslaved dwarf labor and the power of captured demons. The First Party blew it up with a dwarven barn.

When the Seth Slayers passed it on their raft, they saw the dwarven slaves dismantling it and putting the stone on barges and being taken upriver (to either the Flood Palace or Qau).The slaves were being whipped by ogres and gnolls.