Wind Trader Zhareem has asked you to obtain The Signet Ring of Prince Kael'thas. Deliver it to him in Shattrath's Lower City to collect the reward.
This quest may only be completed at the Magisters' Terrace on Heroic difficulty.
<Class>, today I ask the impossible. Today, you must obtain the signet ring of Kael'thas Sunstrider, lord of the blood elves!
It's true, the rumors of his death within Tempest Keep were ill-founded. He has appeared once more, this time at the Magisters' Terrace on the Isle of Quel'Danas. What he is doing there is a tale for someone else to tell you. What I know is that I have innumerable collectors interested in his princely ring, and I mean to acquire it for them.
Or rather, I mean for you to do so.