After the destruction of their homeworld, the San'Shyuum, known by humans as the Prophets, built a massive space station around a Forerunner Dreadnought to use as a new home. As a result, High Charity soon became the seat of political and religious power within the Covenant. During the events of Halo 2, a Flood Gravemind implanted itself within the ancient city, slowly taking over control of the ship as the infection spread throughout. After briefly housing the artificial intelligence Cortana, High Charity crash-lands on the Ark, where the two structures share the same fate.
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