I agree with you on the design part, however using stuff without knowing what it does and refusing quests are not the very best of choises either in a crpg.
So yes, I agree that Larian should have made it more clear that it was an important quest, however I still think you could have done better on your part aswell.
I can recommend downloading a save game editor, it will allow you to spawn the tenbrium book for example.
With kind regards,
Rashar.
Last edited by Rashar; 03/09/14 02:45 AM.