course of Earth evolution as it made the planet a unique breeding ground for all the super-powered beings one day to come. Five billion years after the death of the Progenitor and his corpse's incorporation into Earth's "primordial soup", another Celestial eventually followed looking for him. This was The Fallen, who was known as Zgreb the Aspirant, the lover of the Progenitor and according to Loki, it became mad by the sight of its dead lover, or perhaps by the effect of the Horde latching onto him. In any event, Odin and his Prehistoric Avengers took on this Celestial, leaving it for dead deep in the Earth. Eventually, the disappearance of two Celestials brought down The First Host to Earth. They made quick work of the Prehistoric Avengers but left after the battle, rather than destroy the Avengers or the Earth. Loki surmises that the Celestials feared succumbing to the Horde themselves and believed it better to leave Zgreb buried deep underground to keep the Horde infection contained, creating in the process two opposing humanoid species – the Eternals and the Deviants - to defend the process under the false impression that they were actually protecting the human race. Dark Celestials When Loki revived Zgreb from his long slumber deep in the Earth, he discovered that the Horde did not kill Zgreb, instead they transformed him into Zgreb the Sorrower, a new breed known as Dark Celestial. Together with the rest of his kind, collectively known as the Final Host, they've killed or infected every other Celestial, the dead bodies of whom now litter the Earth, feeding the Horde. As the entire planet panics due to the Final Host actions, the heroes finally realize why the Celestials did not cleanse planet Earth when they had the chance, they saw the potential to grow an antidote to defeat the Horde and so they waited, visiting the planet now and then to see if the cure had been developed. Eventually the world breathes a sigh of relief as the Avengers, combining their powers through the Uni-Mind (given to Iron Man by Ikaris) purged the Earth of the Horde, curing the infected Celestials. The newly revived Celestials then defeat the Dark Celestials. Infinity Wars In the 2018 Infinity Wars event, as the Infinity Stones are gathered once again, Loki dupes his own version of the Infinity Watch within the Soul World, stealing the