Timeline
Before the Third War · date unknownThe Voice from Northrend
Kel’Thuzad followed the distant summons of Ner’zhul into Northrend, seeking powers his fellow mages had rejected. What he found was more terrible than a new school of magic. The undead kingdom demonstrated how death itself could become captivity.
His desire for knowledge did not spare him fear when he saw the plague at work. By the time he understood the cost of serving the Lich King, escape was beyond him. Kel’Thuzad pledged himself to his new master and returned south to prepare the way for the Scourge.
The Cult of the Damned gave the invasion willing servants among the living. Recruitment and concealed preparations preceded the open catastrophe in Lordaeron. When Arthas began investigating the plague, he was confronting the result of a campaign already underway.
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Before the plague devastates LordaeronAn Estate Given to Death
The Cult of the Damned needed places where its work could proceed unseen. The Barov family’s bargain with Kel’Thuzad supplied one beneath their home at Caer Darrow. The promise of immortality opened the estate to a power its owners would not control.
The underground chambers became Scholomance. What had belonged to a noble household now served the training of necromancers. Alexei Barov himself became an undead servant rather than an independent beneficiary of the bargain.
The academy tied private ambition to the approaching public catastrophe. The plague was not simply a force arriving from outside the kingdom: its servants had already gained shelter within Lordaeron’s own institutions and estates.
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c. 20 ADPThe Plague of Undeath
A plague spread through Lordaeron, turning its victims into undead. Arthas and Jaina investigated its source and confronted Kel’Thuzad. The crisis was larger than a local outbreak: the Scourge was undermining the kingdom from within, confronting the prince with an enemy that grew with every death.
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c. 20 ADPThe Prince Returns
Arthas returned to Lordaeron bearing Frostmourne and murdered his father. The kingdom he had sworn to protect became a target of his undead campaign. Now serving the Scourge, he also killed Uther while seeking the remains needed for Kel’Thuzad’s resurrection.
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During the Scourging of LordaeronThe Teacher’s Last Stand
The effort to restore Kel’Thuzad brought Arthas back against the paladins of his former order. Gavinrad guarded the necromancer’s remains and fell when the death knight came to recover them. Carrying those remains onward required a suitable vessel.
Uther stood in defense of the urn holding King Terenas’s ashes. The student he had trained now sought to empty it for the enemy who had helped destroy the kingdom. Their confrontation gave the war a terrible intimacy: duty to the dead king placed Uther directly in Arthas’s path.
Arthas killed his teacher with Frostmourne and took the urn. The defense of Lordaeron lost another of its great paladins, while the Scourge gained what it needed for the journey to the Sunwell.
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c. 20 ADPThe Fall of Quel’Thalas
Sylvanas Windrunner met the Scourge as Ranger-General of Quel’Thalas. Each defensive line bought time, but the enemy could turn the fallen into more soldiers. Barriers that had protected the kingdom before could not stop Arthas’s advance.
He killed Sylvanas and denied her the release of death, raising her as a banshee under his command. The defender of the kingdom was forced into the army destroying it. Her awareness of that destruction made the captivity part of the punishment.
At the Sunwell, Arthas used the elves’ sacred power to raise Kel’Thuzad. The invasion’s immediate objective was fulfilled, but its consequences were only beginning: a ruined kingdom, a corrupted font and a former ranger whose eventual freedom would be inseparable from the desire for revenge.
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After the fall of Quel’ThalasThe Prince and the Empty Well
Kael’thas returned to a homeland that needed a leader while he was still grieving his father. Arthas had destroyed its defenses and used the Sunwell to restore Kel’Thuzad. The sacred source that had sustained the elves was now a danger to them.
The prince chose to destroy the corrupted font. It was an act of preservation that looked like another loss: the survivors would no longer be poisoned through it, but they had also lost the magic on which generations had depended.
They called themselves blood elves in remembrance of the fallen. The name gathered their grief into a shared identity, while the emptiness left by the well created a need Kael’thas would spend the rest of his life trying to answer.
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c. 20 ADPThe Fall of Dalaran
Arthas and Kel’Thuzad attacked Dalaran, overcoming its magical defenses. The fallen city became the staging ground for Archimonde’s arrival. The Scourge’s campaign had opened the way for a demonic invasion, extending the disaster beyond the kingdoms Arthas had already destroyed.
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c. 22 ADPThe Forsaken Break Free
As the Lich King’s power weakened, Sylvanas discovered that his commands no longer held her. Freedom returned inside a body and existence she had never chosen. Arthas was still within reach, and she moved to turn that brief opening into revenge.
Her banshees drew him into an ambush. A poisoned arrow immobilized him, but she wanted him to suffer rather than die quickly. Kel’Thuzad arrived before she could finish him and drove her away.
Arthas escaped toward Northrend. Sylvanas remained in Lordaeron, where the dreadlords also sought control. Recovering her will had begun the struggle; holding a place for the undead who would become the Forsaken required another war.
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Before Darion’s sacrificeThe Betrayal of Alexandros Mograine
Alexandros Mograine became one of the Scourge’s most dangerous enemies. Yet the betrayal that ended his life came from within his own family. Under Balnazzar’s influence, Renault Mograine turned against his father and lured him into an ambush near Stratholme.
After Alexandros fought through the undead, Renault took his father’s sword and murdered him with it. The weapon became corrupted. Kel’Thuzad later raised Alexandros as a death knight in Naxxramas, placing a former enemy of the undead among the Four Horsemen. For Darion, the loss of his father was only the beginning: neither the man nor his blade had found peace.
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Before the death knights’ rebellionThe First Battle for Light’s Hope
Darion returned to the defenders of Light’s Hope Chapel with the corrupted sword. The Scourge sought more than a military victory: the remains of Lordaeron’s fallen champions rested beneath the chapel, beyond its grasp. The defenders could not hold indefinitely against the approaching army.
Remembering Tirion’s counsel, Darion drove the blade into his own heart. His sacrifice freed his father’s soul and awakened a devastating response from the champions buried beneath the chapel. The defenders survived, but Kel’Thuzad recovered Darion and the still-corrupted weapon. Darion was raised as a death knight.
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c. 25 ADPA World Under Siege
Across Azeroth, adventurers confronted threats from Blackrock Mountain to Ahn’Qiraj. The Scourge also returned in force, with Kel’Thuzad’s Naxxramas looming over the Plaguelands. Even as other enemies demanded attention, the undead remained a threat to lands still bearing the wounds of the Third War.
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During the original Naxxramas assaultVictory Without an Ending
Above the Plaguelands, Naxxramas brought the surviving kingdom’s enemy into a single fortress. Kel’Thuzad commanded the necropolis, while its four quarters trained soldiers, maintained monstrous constructs and turned disease into a weapon. The Cult of the Damned helped sustain the power that had already ruined Lordaeron.
The assault passed through the Military Quarter and its Four Horsemen. The original roster included Alexandros Mograine and Sir Zeliek, whose forced service showed what the Scourge could make of its former enemies. Beyond the wings stood Sapphiron, guarding the route to the lich.
The attackers defeated Kel’Thuzad, but his body was not the whole of his existence. A surviving phylactery left the apparent victory dependent on what happened to the object carried out of the fortress.
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After Kel’Thuzad’s first defeatThe Trust Betrayed
The phylactery recovered from Naxxramas was delivered to Father Inigo Montoy at Light’s Hope Chapel. The place represented resistance to the undead. Entrusting the vessel to a priest there seemed to place the unfinished task in friendly hands.
Montoy instead returned it to the Lich King. Kel’Thuzad could regain his form because the means of preserving him had survived the very expedition meant to stop him. The betrayal turned the recovery of a dangerous object into the condition for another campaign.
Montoy’s betrayal left Kel’Thuzad’s phylactery beyond the victors’ control.
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