An Elddar pinecone

Tumek'Toht says some stuff when you go to complete From Hands of Stone. Probably helpful.

Completion conversation with Tumek'Toht
Hail, Tumek'Toht

''You are far more powerful than I first thought. Perhaps you can assist me on my return flight to Ethernere. But to do such things would require you defeat the one that binds me, the eternal ruler Anuk the Godking.''

If I slay the Godking can I have the Ewer of Sul'Dae?

''You will face the Godking within his Inner Temple of the royal courts. Should you claim victory then you may reap the rewards of the temple. It will be no easy task.''

Then please tell me how to gain entry to the Inner Temple.

''I cannot help you in to the Inner Temple, but I can help you into the royal courts, the Silent City as some call it. Here is what you must do.''

Continue.

''The gate to the Silent City has long collapsed, but you may find an alternate entrance through one of the channels that flow above us. Unfortunately these keys are held by the Priestesses of the Fyr'Un. Gain them and you gain entry.''

How will I find my way into the Inner Temple?

''You will find no allies in the Silent city, save one, and this spirit may aid you in your quest. He is Thalbinous and his gardens once existed in the royal courts. Seek him and he will aid you, but his spirit is often kept at bay by the evil of the now defiled gardens.''

How will I find this treant?

''Seek the notes of the expolorers before you. Their thoughts shall guide you. Take this ancient pinecone of Ahket Aken. Thalbinous shall only speak to you should you have it.''