Where is Cyrus?

Hello, i’m at lvl 50, got my WQ at boralus. After that i went with magni to heart’s chamber, got the Azeroth’s heart but after that i don’t have the quest that unlocks Natjazar. I looked after all npc, but there isn’t a mission to that. My character is Zolia, Aliance, Quel’thalas server. (It is retail)
Thanks for help.