Deacon (prometheus)
The Deacon was an accidental result of the Engineers' Chemical A0-3959X.91 – 15 that was originally used as a bioweapon as well as presumably creating life. The Liquid infected Charlie Holloway, who impregnated Elizabeth Shaw with a Trilobite. This Trilobite eventually matured and impregnated an Engineer on LV-223, whereupon the Deacon developed and burst from the Engineer's chest.
126 years later in the year 2219, the vessel Geryon and its crew land on LV-223 under the pretense of a salvage mission, to catastrophic results, leaving only captain Angela Foster, Galgo Helder, Chris Hanlock, Jill, the Predator Ahab and the mutated construct Elden as the sole survivors. After a series of events, the survivors arrive at a mountain where they believed a human beacon was located. Hoping to escape the moon, the surviving members begin tunneling into the mountain where they came to the realization that the mountain was "alive" and that they were inside an acidic "vein", Elden assumed that whatever was on board "Weyland's ship" had heavily mutated around it. This implies that the Deacon had, in fact, traveled to the ruins of the Prometheus and had mutated around the vessel until it became an organic mountain.
