The Ascent to the Frozen Throne

The weakening Ner’zhul called Arthas back to Northrend. Illidan and his allies were moving against the Frozen Throne, and the death knight could no longer assume that the power sustaining him would endure. Reaching Icecrown became a race to preserve his master and himself.

Anub’arak offered a route through the fallen nerubian kingdom. The former king guided Arthas through tunnels haunted by the consequences of the Scourge’s conquest. For Arthas the passage was a shortcut; for Anub’arak it was the ruin of the realm he had once ruled.

At Icecrown, Arthas overcame Illidan and climbed to the prison above. He broke the ice and put on the Helm of Domination, joining himself to Ner’zhul as the Lich King. The prince who had taken a cursed blade to save his people now sat at the center of the power that had destroyed them.

Illidan survived the duel. Vashj and Kael’thas brought him back to Outland, where the failure left him preparing for Kil’jaeden’s wrath. Arthas gained a throne; his opponent returned to a kingdom that could not make him safe.