The Temple of Ibalize in the Autaric Plains makes is divided into Dungeon 3 and 4 of that region, for Lvl. 11-13 and then 13-15. The next Dungeon is Tribal Plateau.
Enemies: Undead Warriors Lvl. 13 and 14, and several Divine Statues with Undead Crusaders and Warriors
Boss: a Bantashee at Lvl. 15, in a tall structure for some reason also called a Divine Statue