The Ministry of Etiology is a branch of the Covenant that dealt with "the study of causes, origins, or reasons." The Minister of Etiology was present at Installation 04, aboard the agricultural ship Infinite Succor, before he was assimilated by the Flood and the ship destroyed in order to prevent the spread of the Flood.[1]


  1. Halo Graphic Novel, The Last Voyage of the Infinite Succor
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