Chapter Summaries

The expeditionary army destroyed the Iron Legion’s spires and confronted the Iron Council, whose member Molgeim unleashed the Flame Leviathan. After Aaron, Archaedas, and Thorim disabled the war machine, a passage opened onto a thunderous roar that Thorim recognized as Veranus.

• The dragons and gnomes destroyed the spires with experimental bombs, cutting off the Iron Legion’s reinforcements as the expeditionary army advanced through the plaza.
• Aaron encountered the Iron Council, and Thorim and Archaedas engaged Steelbreaker and Stormcaller Brundir while Molgeim opened the doors behind him.
• Molgeim climbed aboard the Flame Leviathan and sent it charging through the expeditionary army, firing rockets and flames.
• Aaron knocked Molgeim off the machine, then tried to dismantle the still-rampaging Flame Leviathan while Ursoc confronted it head-on.
• Archaedas and Thorim joined Aaron and destroyed the Flame Leviathan, revealing a passage from which a thunderous roar sounded.
• Thorim recognized the roar as Veranus’s and angrily blamed Loken.

Thorim rescued his former mount Veranus from Loken’s Iron Dwarves, and the expedition continued toward Ulduar. At the main entrance, they dismantled XT-002 Deconstructor and chose to enter through the ancient doors rather than risk the teleporters.

• Thorim charged toward Veranus’s roar, defeated the Iron Dwarves guarding her, and freed the chained Proto-Dragon.
• Aaron learned from Archaedas that Veranus was Razorscale, Thorim’s former mount, and the expedition left gnomes to examine the Iron Dwarves’ drilling machines.
• The expedition encountered XT-002 Deconstructor, who rushed at Archaedas, and the keepers dismantled him until only his chattering core remained.
• Archaedas explained that Mimiron had stationed XT-002 among discarded machinery to sort scrap and that the nearby teleporters were avoided because Loken might have tampered with them.
• Aaron let Archaedas and Thorim go first through Ulduar’s long-sealed main entrance.

Aaron’s expedition entered Ulduar and crossed a chasm after Archaedas defeated Kologarn. The group split up to find the Titan Keepers, and Aaron led his remaining companions into the freezing Halls of Winter to meet Hodir.

• Archaedas and Thorim returned to Ulduar with Ironaya and Aaron’s expedition, then Aaron sent scouts to investigate the Iron Council’s former quarters and the Celestial Planetarium.
• Aaron threw rubble into the chasm, drawing out Kologarn, whom Archaedas dismantled to create a crossing.
• The expedition entered Ulduar’s inner region, where Aaron searched for Loken and found no sign of him.
• Thorim went with a group to find Mimiron, while Archaedas, Ironaya, and Ursoc headed to Freya’s Conservatory of Life.
• Aaron led the remaining group into the frost-covered passage toward Hodir’s Halls of Ice, where he felt the intense cold and Stellagosa remained comfortable.

Aaron and his companions entered Hodir’s hall and fought the Ice Giant king, who proved stronger than expected. After recognizing Aaron’s connection to Tyr, Hodir stopped the battle and sent them to Freya for an explanation.

• Aaron’s expedition subdued the Yogg-Saron-influenced Frost Giants in the ice tunnels, while the Val’kyr and Xal’atath tried to purge them.
• Aaron found Hodir waiting in the hall and was attacked when Hodir struck the ground with his rune-carved club.
• Kael’thas sent Al’ar to attack Hodir, but Hodir froze the phoenix’s flames before Aaron struck his knee with a warhammer.
• Aaron activated Avatar and grew nearly as large as Hodir, who then dropped his club and ended the fight.
• Hodir asked about Aaron’s relationship with Tyr and told him to let Freya explain why he had not been influenced by Yogg-Saron.

Aaron reunited with the Titan Keepers in Ulduar and learned how Freya had stayed sane and helped free Hodir from Yogg-Saron’s influence. As the keepers gathered, the traitor Loken appeared, setting the stage for a confrontation.

• Hodir explained that Freya had secretly kept him informed and helped him resist Yogg-Saron, and Aaron urged him to join her.
• Hodir opened the way to the central hall, where the Frost Giants cheered to see him again.
• Freya arrived with Archaedas, Ursoc, Auriaya, and three ancient trees, then explained how Azeroth had helped her preserve her sanity and free Hodir.
• Thorim brought the distracted Mimiron to the gathering, and Freya confirmed that he had avoided complete corruption.
• Loken appeared before the assembled Titan Keepers, whose anger and distrust threatened to erupt into battle.

Thorim, Archaedas, Hodir, and Freya battled Loken and his Old God forces in the Halls of Lightning. Aaron seized an opening to isolate Loken and help the Keepers overwhelm him, then revealed that Loken feared his death would bring Algalon to reset Azeroth.

• Thorim attacked Loken, and Archaedas and Freya's ancient elders joined the fight as Loken summoned elementals, Fleshbeasts, Faceless Ones, and four Kraxxi.
• The Faceless Ones pressured the expeditionary army while four Titan Keepers fought Loken and the Kraxxi to a stalemate.
• When Archaedas knocked Loken away from the Kraxxi, Aaron transformed into a stone giant and dragged him beyond their reach.
• Aaron called on the dragons to hold off the Kraxxi, allowing Archaedas and Hodir to join Thorim in attacking Loken.
• Loken pleaded for his life, and Aaron said he knew that killing Loken would bring Algalon to reset Azeroth before knocking him down and demanding his surrender.

Aaron and the Titan Keepers captured Loken, but Yogg-Saron took control of him and caused him to shatter, spreading corruption toward the prison seal. Aaron left to await Algalon at the observatory while the Keepers tried to preserve the seal.

• Aaron defeated Loken, and Freya bound him with vines as Archaedas stopped Thorim from killing him.
• Archaedas tried to persuade Loken to abandon his plan, but Loken remained defiant and warned that Yogg-Saron would descend.
• Loken began cracking apart under Yogg-Saron's influence, broke free of Freya's vines, and released black smoke that enlarged the Old Gods' minions.
• Loken crumbled into stone fragments, and the black smoke spread toward the gate sealing Yogg-Saron's prison.
• Archaedas ordered the Keepers to maintain the seal, and Aaron headed to the observatory to wait for Algalon.

Aaron opened Ulduar’s observatory with the disc Brann had taken from its archive and prepared Xal'atath to stop Algalon from triggering Azeroth’s reset procedure. As Algalon appeared, Xal'atath warned Aaron that the Observer would have to pass through him to reach the Halls of Valor.

• Aaron found Brann guarding the observatory, and Brann admitted he had taken a disc from an archive inside.
• Aaron used the disc to open the observatory doors and found an empty hall with a transparent platform at its center.
• Vereesa asked whether Aaron would summon more people to fight Algalon, and Aaron explained that he meant to prevent a fight and stop the reset signal from being sent.
• Aaron revealed that Xal'atath was ready to give Algalon information about Azeroth as soon as he arrived.
• Xal'atath warned Aaron that Algalon would have to pass through him to reach the Halls of Valor, and Algalon appeared on the platform.

Azeroth stopped Algalon from resetting the planet by revealing that the Pantheon had fallen and showing him fragments of the Titans’ souls. Algalon abandoned the reset, and Azeroth offered him a contract to serve her.

• Azeroth arrived at the observatory, identified herself to Algalon, and ordered Archaedas to conceal what had happened.
• Algalon hesitated to abandon his duty to reset Azeroth, so Azeroth told him the Pantheon was gone and explained Sargeras’s fall and attack on the Titans.
• Azeroth showed Algalon and Aaron the weakened souls of fallen Titans, which she had rescued from Ra.
• Algalon believed Azeroth, gave up the plan to reset the planet, and accepted the contract Azeroth offered him to serve her.

Algalon signed Azeroth’s contract and joined the group, while Azeroth left the observatory after warning them to handle matters in her absence. A green dragon then reported strange beings weakening Yogg-Saron’s prison, and Freya warned Aaron that killing the Old God could bring terrible consequences.

• Azeroth gave Algalon a contract to sign, explaining that she planned to have Pantheon-serving Titan-forged sign similar contracts when they were recruited.
• Algalon signed the contract, and Azeroth introduced him to Archaedas and Aaron as a colleague.
• Azeroth left the observatory after telling the others to prepare and urging them to kill Yogg-Saron.
• A green dragon messenger told Archaedas that Freya had sensed unusual life-forms beyond the seal, and Aaron went with the messenger to investigate.
• Freya said the cage was growing unstable and Yogg-Saron might escape within days, but warned Aaron that killing the Old God could harm Azeroth and the planet.

Aaron and the Keepers debated whether to kill Yogg-Saron or imprison him again, then led an expedition into the damaged prison to confront its defenders. After fighting through the invaders, they approached Yogg-Saron’s prison and prepared for the dangers of his influence.

• Aaron argued that killing Yogg-Saron would not cause the devastation the Keepers feared, and Azeroth’s prior instruction helped persuade them to agree.
• Aaron and the expeditionary force opened the prison doors and found Faceless Ones and Undead, including Nerubians, digging through the walls.
• The expeditionary force attacked the Faceless Ones after the Undead withdrew through their tunnels, routing the remaining defenders.
• The group encountered strange illusions and real floating debris near Yogg-Saron’s prison, which they recognized as signs of his influence.
• Aaron warned everyone to flee if anything felt wrong and left some members outside to reduce the risk of them falling under Yogg-Saron’s influence.

Aaron led an expedition into Yogg-Saron’s prison, where General Vezax summoned elementals and gathered Saronite crystals to delay them. The expedition killed Vezax, but Yogg-Saron broke free immediately afterward.

• Aaron chose soldiers who had resisted Yogg-Saron’s influence to enter the prison first and arranged for reserves and Val'kyr to monitor them.
• The expedition advanced through the prison and encountered General Vezax and two other Kraxxi guarding the way to Yogg-Saron.
• Vezax summoned a horde of fire and wind elementals while the expedition fought to push forward.
• Vereesa used the Titans' Strike to shatter Vezax’s Saronite crystals, preventing him from accumulating enough to stop the expedition.
• Aaron, the Keepers, and the soldiers killed General Vezax, but Yogg-Saron broke free and announced his return.

Yogg-Saron broke free beneath its prison and attacked Aaron’s expedition with Faceless Ones, tentacles, and weakening spells. Aaron entered Yogg-Saron’s dream realm with nine others to strike its brain while the Titan Keepers waited outside to attack once its barrier fell.

• Yogg-Saron’s whispers trapped many soldiers in illusions, but Aaron, the Titan Keepers, and Liadrin resisted or quickly recovered.
• Thorim jolted the affected soldiers awake, and Aaron led the expedition into Yogg-Saron’s prison.
• Yogg-Saron burst from beneath the chamber floor, summoned Faceless Ones, and sent tentacles to attack and weaken the expedition.
• A barrier protected Yogg-Saron, so Aaron chose to enter its dream realm and attack its brain while Archaedas and the other Keepers prepared to strike from outside.
• Aaron and nine expedition members stepped through the portals, while he realized that bringing five Keepers meant he would miss out on Mimiron’s Head again.

Aaron led the group through Yogg-Saron’s dream realm, where they fought tentacle illusions and attacked the Old God’s brain while escaping each vision. After a vision of Archimonde killing an alternate Aaron, they returned to find the barrier down and the assembled forces attacking Yogg-Saron.

• Aaron recognized the first vision as Thoradin awakening Zakajz and led everyone against the human illusions that turned into tentacles.
• The group rushed through the opened barrier and portal to attack Yogg-Saron’s brain before its spell finished, then returned to the prison hall.
• Aaron taught the portal teams to attack each vision’s targets quickly, and the group repeated their assaults through visions of Neltharion, Garona, Kith’ix, the Scourge of the Sands, and Azshara.
• Krasus sensed that Yogg-Saron was nearing its limit, while Aaron and the others entered another vision and saw Archimonde kill an alternate Aaron.
• After the group completed one final assault and escaped the dream realm, the barrier vanished and attacks from every direction engulfed Yogg-Saron.

The expedition killed Yogg-Saron, then the Titan Keepers began planning how to destroy and purify its scattered remains. Aaron learned the work could take years, until Freya relayed Lady Azeroth’s proposal to combine him with the Emerald Dream.

• Thorim, Archaedas, and Hodir helped the expedition kill Yogg-Saron after it severed and scattered many of its limbs.
• The Titan Keepers decided to crush Yogg-Saron’s remains rather than seal them away, after Aaron warned them about the Heart of Y’Shaarj’s dangers.
• Aaron joined Archaedas and Thorim in purifying Yogg-Saron’s tendrils, but estimated that purifying the body would take nearly two years.
• Freya told Aaron that Lady Azeroth had a proposal requiring his cooperation, and Aaron was stunned to hear it involved putting him together with the Emerald Dream.

Freya linked Aaron to the Emerald Dream, granting him a connection to nature and the possibility of becoming a Wild God. She told him that this was only the beginning and that the work to purify Yogg-Saron would continue inside the Emerald Dream.

• Aaron learned about the benefits of linking to the Emerald Dream, including the chance to survive as a soul after his body died.
• Freya brought Aaron to the Conservatory of Life, where Ursoc advised him to roar or fight if the connection overwhelmed him.
• Freya used nature magic to connect Aaron to the Emerald Dream, and ancient beings with ties to it sensed the arrival of a weak new companion who wielded the Holy Light.
• Aaron discovered that his strength had recovered and that he could faintly sense the life force of other living beings.
• Aaron asked whether his new connection would speed up the purification of Yogg-Saron, and Freya opened a portal and explained that the next steps had to happen inside the Emerald Dream.

Aaron entered the Emerald Dream, where Freya revealed the Tear of Elune and transformed it into a source of Holy Light. He learned he could draw on its power and let others use it, leaving him with some of a Wild God's authority as he considered starting a religious order.

• Aaron entered the Emerald Dream in soul form and found Freya waiting for him.
• Freya reached into Aaron's chest and withdrew the Tear of Elune, prompting Ysera to recognize the artifact she believed had vanished during the Sundering.
• Aaron suspected a hidden connection between the Tear's disappearance and his arrival in Azeroth.
• Freya used the Emerald Dream's power to make the Tear of Elune a source of Holy Light for the keepers to use against Yogg-Saron's remains.
• Freya taught Aaron how to draw on the Tear's power and grant others permission to use it, giving him some of a Wild God's authority.

After leaving the Emerald Dream, Aaron arranged the expeditionary force’s withdrawal from Northrend and prepared to return to Covenant City. Before departing, he still had to visit the Maker's Overlook at Azeroth’s request.

• Aaron used the Tear of Elune to enter the Emerald Dream, while Freya stayed behind to speak with Ysera and investigate the Emerald Nightmare.
• Aaron returned to his body and answered Kael'thas and the others’ questions about his experience in the Emerald Dream.
• Aaron concluded that Ner'zhul remained hidden somewhere in Azjol-Nerub, beyond the surviving Nerubians’ ability to search safely.
• The expeditionary force’s members prepared to leave or remain in Northrend, while Tyr's Guard stayed temporarily to guard the Orc logging crews until Kul Tiras sent replacements.
• Aaron considered Northrend’s timber and mineral resources, then resolved to return to Covenant City and visit the Maker's Overlook before leaving.

Aaron traveled to Maker's Overlook in Sholazar Basin, where Azeroth asked Archaedas to use the Forge of Wills to create bodies for the heroic spirits. Azeroth also revealed that Aaron had given it the Tear of Elune and sent him to bring Senegos and the blue dragons to Maker's Overlook.

• Mimiron repaired Ulduar's teleporters, and Aaron used one to reach Sholazar Basin.
• Aaron met Azeroth and asked for a way to communicate with it at any time, but Azeroth showed him Magni Bronzebeard as a warning about becoming a diamond dwarf.
• Azeroth asked Archaedas to use the Forge of Wills to make bodies for the heroic spirits gathered at Maker's Overlook.
• Azeroth told Aaron that he had given it the Tear of Elune before it had a clear consciousness, and Aaron connected this to a possible past visit to the War of the Ancients.
• Aaron told Azeroth about his vision in Yogg-Saron's dream realm and feared that Archimonde would kill him in the War of the Ancients, but Azeroth refused to explain the scene.
• Azeroth asked Aaron to bring Senegos and all his blue dragons from the Azurewing Whelplands to Maker's Overlook.

Azeroth and Saragosa planned to merge Azurewing Whelplands with Coldarra to strengthen the Blue Dragonflight and repair the ley lines. Aaron traveled with Stellagosa, Sapphiron, and Krasus to ask Senegos to return, where Senegos mistook Stellagosa for Sindragosa.

• Saragosa explained that Coldarra needed experienced blue dragons to maintain its disrupted ley lines, while Azurewing Whelplands' young dragons needed Coldarra's abundant energy.
• Azeroth and Aaron accepted the plan, and Saragosa prepared to notify Coldarra while Aaron agreed to bring Stellagosa to Senegos.
• Azeroth reminded Aaron that he was her spokesperson and that she needed to avoid drawing the Burning Legion's attention by appearing outside.
• Aaron arranged to take Sapphiron and Krasus through a portal from Coldarra to Azurewing Whelplands, with Stellagosa providing the coordinates.
• Stellagosa hurried to Senegos's pool and startled him; Senegos initially mistook her for Sindragosa before recognizing Little Star.