The Eternals are five mortals who, centuries ago, were given a nearly immortal life after they volunteered to be "locks" for Zzyzx. As long as there was at least one Eternal alive, Zzyzx could not be opened. This placed them right in the way of the Society of the Evening Star, who hunted them down. The Eternals were each given a Guardian Shapeshifter who would protect them at all times, and whose very existence was tied to that of their Eternal. The Eternals do not age, and can only be killed by Phoenix, Unicorn, or Dragon magic. The Eternals were all tied to the five Artifacts, especially the Sands of Sanctity and the Font of Immortality, to keep them healthy with rapid healing and to halt their physical aging.
Possible Death Causes
- Phoenix and Phoenix feather tipped weapons
- Mortal wound from a Unicorn Horn or an item equivalent of its power
- Dragon tipped items or Dragon Breath
The Old Eternals
- Civia - deceased, slain by Torina Barker, located in Dallas, Texas
- Mark - deceased, slain by the Gray Assassin, located in Santa Monica, California
- Roon Osricson - deceased, slain by the Society of the Evening Star, located at a Stronghold in Findland (Shipbreaker Fjord)
- Unnamed Eternal - deceased, slain by Sphinx before obtaining the Oculus,thought to be a middle aged looking man with an exotic bird on his shoulder, presumably his Shape-Shifting protector.
- Unnamed Eternal - deceased, slain by Sphinx after obtaining the Oculus
The New Eternals
- The Sphinx, allowed to become the first Eternal for the new Demon Prison as punishment for his crimes.
- Keys to the Demon Prison (Fablehaven #5)