I like this a lot it's similar to something I wanted to try with the Altdorf chronicles, to have a main overland city with various ways of picking up quests and as you do more the main area expands. Your overland areas look really well done and the overall presentation is excellent. Giving the players a path choice is really nice, I was thinking of doing that but it seems like a waste of work because so much won't get used. I think I'm going to do a minor version of a path split in my next quest pack, whenever that will be. Things happening differently depending on what they've found is also really good and so is not being able to replace dead heroes right away but having to find new ones, it makes dying mean more. I like what you did with the town using the main board. You've got a wizard's sword too, I swear I didn't copy it from yours.
Mine just gives three attack dice, not sure if yours is the same.
There's a couple of things about the intro that I think could do with a polish. I don't mean to be over critical, this is just what I'd do.
"...these giant's bones emerge from the very ground."
I'm not sure the use of the word 'very' works here. Where else would they emerge from? Also you emphasise the ground in a similar way in the next sentence. I'm not sure about 'giant's', 'these giant reptilian's bones' works better for me or maybe 'these giant reptilian bones'.
"This land is infested by Orcs, but not the Orcs of the Old World. The Orcs here are much larger and stronger, legendary black orcs can even be found leading Orc Warbands, or worse - as soldier-slaves of the Chaos Dwarves."
No capital in 'warbands' and too many 'orcs', three in eleven words. 'This land is infested by Orcs, but not like those of the Old World.' You're heavily drawing from WH world lore but in that it's not just black orcs that live with chaos dwarves and also black orcs do inhabit the old world, in fact isn't where the chaos dwarves live part of the old world? Assuming it's not, 'This land is infested by Orcs, but not all are like those commonly found inhabiting the Old World.' There badly needs to be a 'these' right before legendary, I don't think even works because it's not at all surprising that stronger orcs would lead weaker ones, and although - works, you use a different looking - in a bit. I'm not sure why the second one is there, "...the lure of treasure - too much to pass up."
'This land is infested by Orcs, but not all are like those commonly found inhabiting the Old World. Many of the Orcs here are much larger and stronger, these legendary Black Orcs can be found leading Orc warbands, or worse, as soldier-slaves of the Chaos Dwarves.'
I'd end the intro with a ? rather than a !.
There's a dodgy sentence in the intro to the border princes. "There is no doubt but that you could easily find adventurer amongst these kingdoms,..." No but and adventurerS.
I haven't read it through properly yet but the first encounter could do with some clarification. It says don't place the hobgoblins on the board until they've crossed the line, what about the chaos dwarf? If not then it could do with saying that and it says they can end the encounter by moving off the edge of the board because the hobgoblins have blocked the road so shouldn't it say the north edge of the board?
The circling back around in quest 1 doesn't seem to quite work. Maybe they could spot the secret door as the last hero steps through the door into the first you and tell the EWP that the hobgoblins that come onto the board at the NW corner have to chase the heroes.
I'm looking forward to reading the rest and seeing the cards.