Opera event

The Opera Event
	; The stage is set!
Race	Varies (Varies)
Level	?? Boss
Location	The Opera Hall, Karazhan
Karazhan
Attumen the Huntsman; Prince Tenris Mirkblood; (Scourge Invasion); Moroes; Maiden of Virtue; The Curator; Terestian Illhoof; Shade of Aran; Netherspite; Chess Event; Prince Malchezaar; Nightbane	(lore); (lore); ; (lore); (lore); (lore); (lore); (lore); (lore); (lore); (lore); (lore)
	Servants' Quarters Beasts
Hyakiss the Lurker; Rokad the Ravager; Shadikith the Glider	(lore); (lore); (lore)
	Opera Event
Wizard of Oz; The Big Bad Wolf; Romulo and Julianne	(lore); (lore); (lore)
	Loot

In order to find out which event is on, a single raid member can strip and start the event. The rest of the raid should wait in the pit below. If Red Riding Hood is on, the raid member is safe, and the rest of the raid can move up, as the event will not start until someone talks to Grandmother. The other two events will engage straight away and the person on stage will die quickly.
Special Note - It is possible to stand on the barrels on the ledge above Barnes and have one person start the event and run up to the ledge and also stand on the barrels. Doing so will prevent death from the event starting, though in the case of the Oz event, Roar may still hit/kill at least one person. This is effectively the same effect as the giant wheel in the boat room of Deadmines, creating an "evade" bug issue.
After the event, a door on the side of the stage opens which leads to the Curator via some trash mobs (among them the lucrative Ghostly Philanthropists).
Successfully completing the Opera also enables you to reach the side entrance, making wipe recovery much quicker. Prior to patch 3.2.0 the door opened automatically when the event was completed, enabling raids to skip several trash pulls by leaving and reentering.
Moroes must be killed for the Opera event to be accessible.