I cant seem to figure out how to complete this mission. i have a grey key tent, a blocked blue gate by the ghost knight, which i did his quest, and a demon off to the right that just talks to me. What should i being doing next? i cant get past the blue border gate. Am i to use the alters around the Haven castles some how?
Hope there are still players around to help, thanks.

Game hints and tips can be found in several differnt web locations,
including:

http://www.ign.com
http://www.gamefaqs.com
http://www.gameboomers.com

I need the same help, Layne_smart. Did you ever find out how to get past? I thought maybe sending one hero to each altar with the spell cleanse and try casting simutaneously. What's the answer?