Now that you have defeated Queen Azshara’s Wrath and have the Tidestone in hand, it is time to place it in Aegwynn’s Gallery in the lower chambers of Dalaran.
Use the central teleporter in Dalaran and then place the Tidestone of Golganneth in Aegwynn’s Gallery.
Archmage Khadgar has set aside a space here for the Tidestone of Golganneth, as well as the rest of the Pillars of Creation.
Prince Falondis: It has been ages since I have seen the Tidestone whole, but there it stands. I and my people owe you a debt of gratitude that we can never repay. Please return to Azsuna as soon as you can. There is much yet left to do, (name).
The Tidestone of Golganneth