The Broken Halls is a fairly large dungeon located close to the Castle Wars minigame which served as the home and laboratory of the crazed third-age wizard known as The Cohesive before he was killed by an experimental plague he himself created. It contains several new variations of enemies, including Four-headed stogres, and you will unlock the soundtrack "Deranged Experiments" in the upper level, and "Plagued" in the lower levels. All of the monsters will become passive if the player is wielding an Ancient staff, and both passive and unattackable if the player is wielding a Zaros godsword.