Brunadier is reluctant to grant you an audience with Lord Drillemont, and sends you to ask Ser Alboise for help.
This quest is available if you have completed the quest The Final Flight of the Enterprise, and have reached level 39.
Starting the Quest
Talk to Brunadier at the southwest entrance to Whitebrim Front in the Coerthas Central Highlands to begin the quest.
Speak with Alboise
Go northeast into Whitebrim Front and go toward the Delivery Moogle. Go through the door just north of the moogle to find Alboise. Talk to her to proceed.
Speak with Astidien
Go south to go back outside, then go up the north stairs and enter the building on the right. As soon as you enter, turn right and go up the stairs. Talk to Astidien to proceed.
Speak with Goudernoux
Go back down the stairs and through the door to the left to go outside. Go south and through the door just past the fire. Inside, go up the stairs and talk to Goudernoux.
Speak with Drillemont
Go upstairs and talk to Drillemont. Hand over the two letters and there will be a cutscene.
Next Main Scenario Quest
After you complete the quest, go downstairs to the ground floor and talk to Haustefort to accept the next quest: Factual Folklore.