After the events that occurred, you tie up loose ends in Southern Thanalan.
This quest is available if you have completed the quest One Life for One World.
Starting the Quest
Talk to Alphinaud in Southern Thanalan to begin the quest.
Speak with Alisaie
Talk to Alisaie to proceed.
Speak with Papalymo
Go north to where the orange arrow is pointing in the minimap. Talk to Papalymo and there will be a cutscene.
Speak with Alphinaud
Go to Mor Dhona and go into the building south of the Aetheryte. Enter the Rising Stones and go north to where the orange arrow is pointing in the minimap. Talk to Alphinaud to proceed. There will be a cutscene.
Speak with Alphinaud Again
Go to the quest icon on the map and talk to Alphinaud to complete the quest. 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.
Next Main Scenario Quest
After you complete the quest, talk to Tataru to accept the next quest: Tidings from Gyr Abania.