Location: This quest takes place in Stonetalon Mountains.

Shortly: Arcanist Valdurian at Windshear Hold wants you to use the Highborne Prison to bind 5 Highborne Spirits.

How to: Exit the hold from the south road and follow it southwards. In the first intersection turn west and then in the second turn southwest. You will find Ruins of Eldre’thar. Use your prison on non-aggro highbornes to gather their souls.

The Reward is 500 reputation with Darnassus.