So I went southwest instead, being chased by a lvl 15 wraith along the way. Ended reaching some towns where I could sell the rest of my loot, before venturing into The Convocation of Elona, and for my terrible surprise, a lvl 20 Vampire Ancient was waiting behind the first corner. Before killing me, a door opened and a Werewolf showed up and I watched in horror as the vampire turned around and massacred the poor creature with 2 punches. So I decided to head east next. I reached Arkhope, closest town to PH with an Arkay temple, which I joined. After a quick errand quest, I kept going east and finally reached a dungeon I could do without getting destroyed: Skous, a giant settlement.
At first it looked like the dungeon had only 3 rooms with 1 giant and nothing else, but I discovered a secret door and kept going. And boy, was the place huge! I spent the whole evening and part of this morning clearing the place. The spells came handy on some occasions, especially levitate. The dungeon was filled with lvl 10 giants as I expected, but there were also a few lvl 17 gargoyles, which were still killable with my trusty ebony dagger and some patience. I finally upgraded to lvl 2 during my stay there (my skills need 3x the usual xp to increase)
I'm really enjoying the game, and the mods help quite a bit on that matter. Here's hoping I have a grand time. I'll post some images of the dungeon after I cleared it.