Ysayle leads you into the Dravanian Forelands in your quest to meet with Hraesvelgr.
This quest is available if you have completed the quest Purple Flame, Purple Flame, and have reached level 52.
Starting the Quest
Talk to Ysayle in the Coerthas Western Highlands to begin the quest.
Journey into the Dravanian Forelands
Go northwest to reach the Dravanian Forelands. There will be a cutscene.
Speak with Ysayle
Go northwest to the quest icon on the map and talk to Ysayle to proceed.
Speak with Marcechamp
Go northwest ot where the orange arrow is pointing in the minimap. Attune to the Tailfeather Aetheryte, then go northwest over the small bridge and enter the building on the other side. Talk to Marcechamp to complete the quest. There will be a cutscene.
Aether Current Quest
With the completion of this quest, you can now start the blue quest "Some Bad News" in the Dravanian Forelands. Completing that quest will attune you to an Aether Current in that area.
Next Main Scenario Quest
After you complete the quest, talk to Marcechamp to accept the next quest: Worse than Dragons.