If Gorm is spoken to at the Moorside Inn, without the Jarl nearby, he will ask for assistance in his plan to overthrow Idgrod. He will then give the Dragonborn Gorm's Letter to deliver to Captain Aldis in Solitude. Doing this does not provide a quest entry in the journal, and delivering the letter does not result in any reward higher than 20 File:GoldIcon.png. It does, however, count toward helping the citizens of Morthal, satisfying one of Jarl Idgrod's requirements for becoming a Thane.