OT, but the scaling of the OC continues in the later chapters, at least for some areas/encounters. It's not perfect and certainly not consistent, but can lead to some surprises.
Once, someone on these boards had a question about the Chapter 1 quest in the Beggar's Nest and I decided to investigate. I didn't want to spend time fighting mobs, so I took in an epic mage (level 32ish) into the warrens to quickly get to the area the question referred to. I figured a few empowered Firebrand and Undeath to Death spells would clear the way for me. On my way, for amusement, I decided to stop and pull the "multiple mummy trick" at the sarcophagus room (where the Armor of Comfort is found). I opened the sarc, put in several items and took them out again, thinking a bunch of mummies would spawn. But was I shocked when about dozen demiliches popped up and proceeded to cut my mage to ribbons!