Aaron joined Rhonin and Vereesa on a mission that led through dragon attacks and hidden routes to Grim Batol. After Rhonin freed Alexstrasza and restored the Dragon Aspects’ power, Deathwing escaped, and the survivors prepared to leave.
Aaron and his companions exposed Lord Prestor’s dragonkin and discovered cultists serving the Old Gods, while Aaron reforged Xal'atath with Holy Light. He and Vereesa reached Quel'Lithien as Troll attacks and preparations for retaliation drew them toward Farstriders' Camp.
Aaron traveled with Vereesa to Silvermoon City, where a Troll assault on Farstrider Lodge led to Zul'jin's escape and a desperate fight against him and his allies. After helping Sylvanas and recovering from his injuries, Aaron left Quel'Thalas, but Vereesa leaped aboard his departing ship to join him.
Aaron and Vereesa reached the Broken Isles, where they helped Kel'Thuzad investigate Prince Farondis and later joined Stellagosa in confronting the Nightfallen’s mana-draining. Farondis’s attack on Senegos ended with Aaron severing his control of an Arcane Construct, which collapsed from lack of mana.
Aaron traveled with Stellagosa and Vereesa to seek Truthguard, relying on Xal'atath's deception and a magical ship to cross Stormheim. After enduring the tomb's visions and finding Ygrim, Aaron was refused the shield and prepared to challenge him again.
Aaron gained Truthguard, acquired Titans' Strike for Vereesa, and crossed the Eastern Kingdoms while dealing with the Fal'dorei and Gilnean politics. After selling Orbis’s core to Lordaeron, he brought Ygrim toward Tyr’s Fall, where Ygrim revealed that Tyr’s resting place had been desecrated.
Aaron destroyed Zakajz, received Tyr’s Silver Hand, and challenged the Silver Hand’s Paladins to reconsider their beliefs after Barthilas tried to murder him. He then traveled with Vereesa to Gnomeregan, where he proposed a business partnership to Mekkatorque and the tinkers.
Aaron founded the Ya-Mei Trading Company, helped the gnomes build standardized production, and launched its revolver business. After winning major orders, he went to Quel'Thalas with Vereesa and learned that Zandalari Trolls were aiding the Amani, then left to assess the fighting.
Aaron helped Sylvanas evacuate the rangers from the Amani Troll assault, then supported Quel'Thalas by arranging Alliance aid and weapons. In Stormwind, his Holy Light awakened Liadrin's path to becoming a Paladin, and Truthguard led him to suspect a black dragon was nearby.
Aaron exposed Onyxia's scheme, then helped lead the Alliance relief force into Quel'Thalas and Zul'Aman. After defeating the Amani Loa and Hex Lord Malacrass, the allies reached Zul'jin, who refused to surrender.
Aaron defeated Zul'jin, became lord of the newly founded Covenant City, and oversaw its early growth. As Northrend's dangers mounted, he assembled a large expedition, fought off Naga and Infinite dragons at sea, and arrived at Daggercap Bay ready to divide his forces.
Aaron recruited Ygrim and the Dragonflayer Vrykul, then defeated Ymiron’s undead forces and claimed Utgarde Keep. At Wyrmrest Temple, Aaron discovered Sindragosa’s remains were being excavated and helped free her from Ner’zhul’s influence, though Xal'atath intensified her hatred of Malygos.
Aaron helped lay Sindragosa to rest, then joined forces with the Furbolgs against the trolls and confronted corruption tied to Vordrassil. The expedition reached plague-stricken Drak’Tharon Keep, where Aaron killed the Lich Novos and met Drakuru, whom he suspected of spreading the plague.
Aaron uncovered and contained the plague in Drak'Tharon Keep, then led the Loa and his forces to defeat the Drakkari in Zul'Drak. Back in Covenant City, he advanced its construction, gathered weapons and allies, and brought Ironaya’s Earthen and golems through the Elf Gate.
Aaron brought the Earthen and their allies to Northrend, where they fought the Zandalari and Naga, protected the dragonshrines, and helped the Nerubian survivors defeat Anub'arak. The dragons cleared a path to Icecrown Citadel, Aaron defeated Mal'Ganis, and he was left to decide what to do with Ner'zhul.
Aaron recovered Frostmourne, then helped defeat corrupted Malygos and restore his soul. He led an expedition toward Ulduar, where he found the Frost Dwarves under attack and infiltrated Valkyrion with Xal'atath.
Aaron united the Frost Vrykul, Frost Giants, and Titan Keepers, defeated Loken’s forces, and fought through Ulduar’s defenses to free the corrupted Keepers. The arc ended with Loken facing the assembled Keepers as their anger and distrust threatened to spark a fight.
Aaron helped defeat Loken and Yogg-Saron, then worked with Azeroth to strengthen the Keepers and restore the blue dragons to Coldarra. He joined Tandred’s expedition to Kalimdor, made initial arrangements with the Night Elves, and set out with Vereesa and Shandris toward Astranaar and Mount Hyjal.
Aaron traveled through Ashenvale and Mount Hyjal before entering Desolace to investigate Zaetar’s disappearance and the land’s corruption. After helping the Tauren and gaining access to Maraudon, he joined Cavindra and Vereesa in fighting corrupted creatures, and Celebras prepared to lead them toward Theradras.
Aaron helped Zaetar and the centaurs begin restoring Desolace, then uncovered Xavius’s attack on the Shen'dralar Ancients and sought a new energy source for them. He reached the Eye of Azshara with Vereesa and Archaedas, where they encountered Athissa and the Naga.