Auceo was a male Caeliar who lived in the city ship of Kintana on Erigol. There he served as poet-laureate, the species' chief archivist, and research partner to Eilo and worked on that city's Great Work apparatus.
Auceo was present at the apparatus in 2168 when the Columbia MACOs revolted against their imprisonment, subverting the piece at Mantilis. He detected a fleeting sense of warning through the Caeliar gestalt that the humans had interfered with the Work before finding the entire link silent in pain and horror as the city of Feiran was destroyed. (ST - Destiny novel: Gods of Night)