Okay so I just got that Moth Priest to read the scroll. Lord Harkon tells me to find the two other scrolls, the quest directs me to Winterhold in order to speak with that Orc librarian (sounds familiar right?), and before I know it I'm told to go speak with that crazy guy that lives in an outpost in the middle of nowhere. The dialogue was exactly the same as the part of the main quest where you have to find the elder scroll for Paarthurnax. And I haven't even met Paarthurnax yet!
Help...
Help...