[Edit] Got past it. You had to click to the far south side of the thing. Perhaps this should be mentioned on first page?
BTW really enjoying the outdoor enviroments reminds me of dungeon siege (it was the first RPG I played but still good apart from combat mechanics). I like grinding.... so long as its in a nice enviroment. In TQ it feels like I'm playing through a straight line thats bending every now and then with better monsters at every bend with the odd boss monster being the fun. In this its all about discovery and adventure. Suffice to say I'm only up to the start of egypt in TQ IT and I'm finding I want to play this more. Great job allready!
One minor bug I noticed is that you appear not to have done all the cliff faces with impassable paint.