Apparently after you sign up at Sandy, quests are open to you to clear. First quest rewards you Deathstone, the 2nd quest in the series rewards you Angelstone. Guess that makes it much easier to get Gobbiebags faster :D I'll get the NPC name when able, I don't have the expansion yet, but a friend cleared both quests last night with ease. It's in South Sandy (S) so shouldn't be hard to find.