This quest is not available in game.
Bring the Heart of Isha Awak to Mahren Skyseer.
The grand Isha Awak is lord of these waters. Great is his strength, and solemn his pride. The humans on the coast fear him, for he has consumed many of their number.
But I do not fear him. I am grateful he is here. He is a worthy challenge, and honorable prey.
If you are ready, then swim out and search for Isha Awak, the Deep Doom.
His spirit dwells in his heart, and to hear its beat is to know your fate.