Another way to get to Moonrise without going to Last Light Inn first is to go in through the mountain pass with a Spider Lyre in your inventory (from Minthara or from Neir, they both drop one on death). Almost the first thing you encounter then is a tiny goblin camp where you can kill the 4/5 goblins (or not depending on player choice), play the lyre and the drider turns up, you can persuade him to hand over the lantern or you can just kill him and take it. Don't need to bother with even talking to Isobel once you eventually go to Last Light, pixie light is more than sufficient to see you and your party safely to the end of Act 2 and you don't need to hold anything.
