I have completed the Dawnguard questline as a vampire hunter. I have sold two of the scrolls to Dexion the Moth Priest. I have one remaining, the dragon scroll. I cannot sell to either Dexion of Urag in the College because I don't have the option to. How do I get rid of the last scroll? Its taking up needed space in my inventory.
If by main quest you mean the main quest involving the Dawnguard addon, I have completed it. If you mean the main 'game' quest involving Alduin, I have also completed that. Sorry about the confusion
@Nocturnal - Yeah it is a quest item but according to the details, its weight is 20. Not sure if this is also a glitch, or I am meant to give the scroll back to Valerica or sell it to some one else.