Now that the mysterious adventurers defeated the re-summoned Ravana, you return to Anyx Trine to inform Vidofnir.
This quest is available if you have completed the quest A Little Slow, a Little Late.
Starting the Quest
Talk to Alphinaud in the Dravanian Forelands to begin the quest. There will be a cutscene.
Speak with Vidofnir
Go north into 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. This one is important, so it is recommended to watch it either now or via the Unending Journey in an inn room.
Speak with Alphinaud
Go to Ishgard and go east from the main Ishgard Aetheryte to the quest icon on the map. Talk to Alphinaud to proceed.
Speak with Lucia
Go northeast up the ramp, then go east to where the orange arrow is pointing in the minimap. Go through the doors behind Firmalbert and go to the quest icon on the map. Talk to Lucia and there will be a cutscene.
Next Main Scenario Quest
After you complete the quest, talk to Lucia to accept the next quest: Against the Dying of the Light. There will be a cutscene.