Pyat Pree, a warlock from Qarth and also a member of Thirteen says to Daenerys Targaryen, the youngest daughter of King Aerys—- “Should you grow weary of Xaro’s baubles and trinkets it would be an honor to host you at the House of the Undying.”
The house of the undying prophecies is a large tower located in Qarth that is surrounded by large trees that make the Shade of the Evening. The house of the undying prophecies is known to be the headquarters of the warlocks or the sorcerers of Qarth. The original novel of The Song of the Fire and the Ice. From which this American tv series has been adopted depicts the house of the undying prophecies in scenes as the abode of The Undying, who are the leaders of the Qartheen warlocks.