You and Alphinaud set out to escort Lucia to Anyx Trine for a meeting with Vidofnir.
This quest is available if you have completed the quest An Uncertain Future.
Starting the Quest
Talk to Alphinaud in Ishgard to begin the quest.
Rendezvous with Lucia
Go to Tailfeather and go to the quest icon on the map. Talk to Lucia to proceed.
Speak with Vidofnir
Go to Anyx Trine. From the Anyx Trine Aetheryte, there is a hole in the ceiling west of the Aetheryte. Fly upward through the hole and go to the quest icon on the map. Talk to Vidofnir and there will be a cutscene.
Speak with Alphinaud
Go to the quest icon on the map and talk to Alphinaud to complete the quest. There will be a cutscene.
Next Main Scenario Quest
After you complete the quest, talk to Alphinaud to accept the next quest: Another Time, Another Place.