Deep Tunnels

Deep Tunnels appears in Red Rising Saga.

The Deep Tunnels represent a vast, shadowy network of subterranean passages in the Red Rising Saga, serving as critical infrastructure for transportation and survival beneath the war-torn landscapes of Mars and beyond. Though minimally detailed in earlier volumes, they gain prominence in later books as strategic chokepoints for guerrilla warfare and desperate retreats. Their evolution underscores the saga's theme of hidden depths mirroring the characters' buried ambitions and betrayals.