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After being deposed as Warchief of the Horde and the defeat of N’Zoth in Battle for Azeroth, Sylvanas Windrunner travels to Icecrown Citadel in the Scourge-infested wastes of Northrend, and confronts the reigning Lich King, Bolvar Fordragon. Taking the Lich King’s Helm of Domination from him, she tears it in two, shattering the veil between realities and opening a portal to the Shadowlands (the Warcraft universe’s afterlife). The Shadowlands have become warped in function during recent times. The Maw, a place in the afterlife reserved for the most sinful souls, is now absorbing all souls. As the effects of the Helm’s destruction are felt across Azeroth, Sylvanas has her forces abduct most of the racial leaders of both the Alliance and Horde, sending the factions into chaos.
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