This page explains how to complete the level 80 post-Shadowbringers quest "Reviving the Legacy".
This quest is available if you have completed the quest The Wisdom of Allag.
Starting the Quest
Talk to G'raha Tia in Azys Lla to begin the quest. There will be a cutscene.
Speak with G'raha Tia at the Rising Stones
Teleport to Mor Dhona and go south to enter the Rising Stones. Talk to G'raha Tia to proceed. There will be a cutscene.
Wait for Cid in Dawn's Respite
Check on the Entrance to Dawn's Respite and say Yes, then check on the sparkling Destination to proceed. There will be a cutscene.
Speak with Cid
Talk to Cid to proceed.
Show the Ironworks Promissory Note
Teleport to Foundation in Ishgard and use the Aetheryte to go to the Skysteel Manufactory. Go northwest to the stairs, then go clockwise around the building until you can go northeast through the door. Talk to Fromelaut to hand over the Ironworks Promissory Note.
Hand the Ironworks Promissory Note to the Skysteel Engineer
Go outside and go east to the Aethernet Shard. Use it to go to Athenaeum Astrologicum, then go southeast to the quest icon on the map. Talk to the Skysteel Engineer to hand over the Ironworks Promissory Note and complete the quest. There will be a cutscene.
Next Main Scenario Quest
After you complete the quest, talk to Alisaie to accept the next quest: Forget Us Not.