Ok, I got the sewer key from Windspear Hills and right now I'm in the thick of the mind flayer area. I'm one room away from having it all cleaned out. However, I thought that this was the door to Haer'dalis, obviously I was wrong. So where is the door that leads to Haer'dalis?

the door you are looking for is on the Northern wall of the sewers. it is a secret door so you wont see it right away.

Cool thanks for the info! Man those min flayers are a pain in the arse! Any suggestions as to what spells give good protection against thier charm spells?

The cleric spell Chaotic Commands protects you from all mind flayer psionic attacks. The only thing it doesn't protect you from is physical attacks, as well as the intelligence drain...

It's a good thing to carry a few Charm protection helmets with ya too... - They can actually prove to be quite useful... ;) Good luck!

--t4sK