Xerathul's revenge (module discussion thread)

[henk brouwer]

I think content of levels can not be changed during a game since all the maps are generated at the start, and all monsters are placed during the map-generation, and not later... except for summoning.

maybe you could change some existing monsters properties and give him a spel ability that summons the offending demon-lord... that would be a lot of work though, and I'm not sure wether it would work.
Also the endgame is really not that good in the current Version, so you're not missing that much.. (you kill the demon-lord and get a victory message)

I'm affraid your game is lost, sorry..