The Lost Metal (The Mistborn Saga) · Chapter 76
Wayne Sacrifices Himself
Wayne detonates the harmonium bomb early using a speed bubble, saving Elendel.
Outcome
Wayne dies but prevents catastrophic destruction; Autonomy retreats.
Relive Wayne Sacrifices Himself in Bookworm
Relive Wayne Sacrifices Himself in your EPUB — spoiler-safe to Book 4.