You and Artoirel return to Falcon's Nest to report to Redwald.
This quest is available if you have completed the quest At the End of Our Hope.
Starting the Quest
Talk to Artoirel in the Coerthas Western Highlands to begin the quest.
Speak with Redwald
Go south to where the orange arrow is pointing in the minimap (be sure to cross the bridge on the way), or just teleport to Falcon's Nest, and talk to Redwald. There will be a cutscene.
Speak with Artoirel
Go south to return to Ishgard, then use an Aethernet Shard to go to the Last Vigil Aethernet Shard. Talk to the House Fortemps Guard to enter Fortemps Manor, and talk to Artoirel to complete the quest. There will be a cutscene.