Not much really, you have to fight yourself down to the south and cross the lake to the end dungeon. But in order to cross that poisoned lake you need the "spirit" spell from the Black Dragon in the NE - or you take one of your skill pts and choose this one from the Divine Path (in survivor).
If you're in the end dungeon, you have 6 main fights = > then you're done.
Look at your map, you should aready see your end area if you scroll south and then east.
Your choice if you wish to look at it now-> this is the Wastelands spoiler sequence:http://www.kiya1.via.t-online.de/images/Wastelands.html