Have you heard of Teldis? Only a few Peacemantle have traveled so far but many of our Talrok brothers and sisters know the place well. The HUD control much of what once was this land and they would know what part the Skix have to play in all of this. I know of one of the HUD named Merv south of Nazrun at an outpost called Mekka Hud. If you find him he should have some more information about the Skix in Haggon Marsh, I hope.