 "The Last Voyage of the Infinite Succor" takes place during and after the sixth mission of the video game Halo: Combat Evolved. During the game, players discover that the ringworld on which they are trapped, dubbed "Halo" by the enemy alien collective the Covenant, is in fact a super weapon designed to wipe out all life in the galaxy to deprive an intergalactic parasite known as the Flood of their food source (their food source being all sentient life in the galaxy). The Flood are accidentally released by the Covenant from stasis and begins to spread across the ring. Halo was built by an ancient alien race known as the Forerunners to contain and study the Flood, but also as a weapon of last resort; faced with the prospect of the Flood consuming every thinking being in the universe, the Forerunners activated Halo, destroying themselves but also starving the Flood.
