by Fezzik » Sun Nov 29, 2009 5:47 am
To enter the hill giant fortress, you'll have to continue with the story for a little bit first. That is, go through the mountain pass to Taneliz and take care of some things there. After that, you ought to be able to enter the fortress.
If you've gone to the manageable areas including the spider cave and don't think your party can handle the mountain pass, fight a few fairly high level random encounters to force a level up. If you can reach the appropriate level, I found that a useful spell to pick up for one of the particularly difficult fights in the mountain pass is Circle of Death, if I'm remembering the name right. Good luck.