This unidentified Prophet is a San'Shyuum Lesser Prophet in the Covenant Empire. He controlled the Covenant operation on Ariel in early 2552, intending to recover the Forerunner AI known as the Knowing, referred to be, by the Prophet, as the "silent oracle". However, two ODSTs, Kojo Agu and Taylor H. Miles, made it to the construct before the Covenant excavation teams, and convinced it to self-destruct. Immediately following the Knowing's destruction, the Prophet declared the planet "desecrated" and "soiled", ordering all Covenant troops to pull out and return to High Charity in order to inform the High Council of the relic's loss.
- Curiously, the Prophet is apparently able to instantly "sense" the destruction of the Knowing. Whether this is due to a natural ability to detect Forerunner technology or implants of some kind is unknown.
- Halo: Helljumper (First appearance)