Both Factions

• Loot the  Orb of Des at the top of the Tower of the Ilgalar in Redridge Mountains and  Bough of Altek at the top of the Tower of Althalaxx in Darkshore. Both items will be needed later in the quest.
• Complete  The Orb of Soran’ruk at 49,57 in The Barrens, which requires items from both Shadowfang Keep and Blackfathom Deeps.
• This leads to  The Conjuring follow-up quest, which requires looting Blood of the Legion from demons at Demon Fall Ridge in northern Ashenvale.
• After obtaining the blood, interact with the altar to begin a ritual, summoning a few waves of demons that must be defeated using  Drain Soul while standing inside the purple rune on the ground. Defeat the final Searing Infernal this way to trigger the  Mysterious Traveler quest.
• Return to the Barrens and turn in the quest to receive the final step, Raszel Ander, which will grant the rune.