Heart of Rage

<class>, you must gather a group to investigate the Blood Furnace inside Hellfire Citadel at once! The magical scrying that we have at our disposal indicates that something unnatural is occurring in there. But a powerful force inside is blocking any detailed arcane investigations, so it must be very important. You should expect heavy resistance - no other mission that we've sent in there has ever returned! Scout it entirely and then report back to Nazgrel, advisor to Thrall, with what you witness.