Deepgrave Prison

Deepgrave Prison appears in Red Rising Saga.

Deepgrave Prison debuts in Iron Gold as an impenetrable underwater fortress on Earth's ocean floor, engineered to detain the Solar Republic's most dangerous foes. Its debut underscores the new regime's shift toward ruthless containment over open warfare, trapping characters in cycles of isolation and political maneuvering. As the series progresses, the facility evolves from a static symbol of justice into a dynamic crucible that tests loyalties and fuels escape-driven subplots across subsequent books.