Hi
I've defeated all the zealots but I am missing the 1st clue to find The Oil. Hrothgar is defeated but it now looks like he did not drop a clue or more likely that it did not register that I've defeated him.
As seen on the screenshot, I've got the "festival" and "pig farm" clues for The Oil and Hrothgar is defeated... so I no cannot progress, meaning I can't get the the gear linked to completing this part of the game.