Frozen Sulfur Dune

Frozen Sulfur Dune appears in Red Rising Saga.

Frozen Sulfur Dune is a remote, ice-scoured wasteland on Mercury that first appears in Iron Gold as a strategic no-man's-land between the Republic's forward bases and the Ash Lord's remnant forces. Its sulfurous permafrost and constant storms make it an ideal hiding place for secret caches and guerrilla operations, turning the dune into a recurring chess-piece in the war for Mercury's fate. Across the series the site evolves from an anonymous patch of ice into a symbol of attrition, where small units can vanish for weeks and where the planet's final battles are ultimately decided.