Fadrex Storage Cavern

Fadrex Storage Cavern appears in Mistborn.

The Fadrex Storage Cavern, a vast underground repository in the city of Fadrex, emerges in the climactic events of the Mistborn series as a pivotal site holding ancient secrets amid the world's impending doom. Though largely unchronicled in prior volumes, it becomes central in The Hero of Ages, where its hidden atium cache and concealed passages play a crucial role in the struggle against Ruin's apocalypse. This cavern symbolizes the forgotten legacies of the Lord Ruler, underscoring the series' themes of buried truths surfacing to reshape destiny.