Elves Under Siege - Act 2 Broken World Story Quest
Elves Under Siege is the first Story Quest of Part 2 in the Broken World Expansion Pack for Dungeon Siege 2. This quest will begin after you complete the In Search of Celia Story Quest and speak with Warden Celia. For this quest all you need to do is teleport back to the Dryad Outpost and go a tad bit north to find where Warden Celia asks you to meet her.
Speak with Warden Celia to the north of the Dryad Outpost and she'll open a new route which is the Path to Aman'lu. It's a very linear path and you won't have any trouble getting to Aman'lu from here. At the entrance gate to Aman'lu you will speak with Danadel who will complete this quest for you and give you the next one, The Familiars.