True. I discovered certain things in my forth playthrough that I had missed previous and I'm still sure there's things I haven't discovered quest-wise. I'm still wondering what that "Chicken Rune" does, I'm sure it has some connection to that earth mage in High Hall. There's multiple ways to finish that quest, oh and I still haven't sided ever with that Goblin Lord Sydifyrian (or whatever his name is spelled like).
In a hidden storage near Jackson's farm, there's a note behind the secret wall. It's written by Jackson, it's under a closet which contains a skeleton. I can't believe I didn't notice this in my previous play throughs (as I had visited there before) but the skeleton obviously is Booth (I gained this from reading the note which I hadn't previously done). Funnily enough, once you read Jackson's diary, the quest to confront him is called "Skeletons in the closet" and I found that pretty funny because Booth's skeleton REALLY is in a closet!!!!! XD
Thumbs up for Larian for that one, the small details they put into the game really do make it all that greater.
Oh and then there's the skeletons, notes and treasure you can find around The Battle Tower once you destroy's Damien's stupid armada!TM. There's a tomb with a note - that from what I recall - is quite cryptic. It's signed with "M" at the end which led to speculation that the skeleton in the tomb, could be that of Maxos.
Have you discovered the sleeping adventurers in Broken Valley yet? They aren't part of any quest but if you fetch them an apple, beer and healing potion (from what I recall) you can awaken them and receive a generous reward as a result. They later reveal (back in the village) that the last thing they saw before they fell asleep was a "rhyming wizard" which is obviously Bellegar...
