Kreeholo

The Kreeholo, more commonly known as the Keepers, are an ancient species as old as time itself, having originated from the Aether and assumed the role of watchers of the multiverse.

Overview
The Kreeholo appear humanoid in shape, but with three fingers on each hand and seemingly no legs, instead relying on levitation for mobility. Their face is comprised entirely of a large jaw with very large teeth, with no visible eyes or any other features. There also seems to exist a sub-species of Kreeholo significantly larger than the others, although this has never been directly observed. Interestingly, they seem to be capable of shape-shifting to some extent, as demonstrated by one Kreeholo who assumed Human form and became known as Dr. Monty.

History
The Kreeholo originated from the Aether at the beginning of creation, creating their own homeworld of Agartha. They accomplished this with the use of a device of their design known as the Summoning Key, a spherical artifact that allows the user to control the Aether itself. With it, the Kreeholo mastered interdimensional travel and seeded life across the multiverse. At some point, a group of Kreeholo discovered the Dark Aether, a parallel dimension separate from the rest of creation. These Kreeholo sought to harness power from it, which they referred to as Divinium, and became corupted by exposure to it. This resulted in a civil war between the Kreeholo, eventually ending when the corrupted were banished to the Dark Aether. During their time within this dimension, under constant exposure, the corrupted Kreeholo were physically altered, becoming the Apothicons.

In the late 13th century, the Apothicons escaped the Dark Aether and invaded Earth, where they found that Humans corrupted by the Dark Aether became mindless Zombies. The Kreeholo came to Humanity's aid, driving the Apothicons back to the Dark Aether, although deposits of Divinium remained scattered throughout Earth.

At some point, a Kreeholo known as Nan Sapwe arrived on the island of Pohnpei and was revered by the local population as their protector. An unidentified but malevolent force appeared on the island, prompting Nan Sapwe to sacrifice himself to stop it with the use of his own skull as a weapon. His skull was sealed away in a tomb.

In the 1940's, an Apothicon known as the Shadowman took control of Morg City, zombifiying the Human population and manipulating four survivors into retrieving and charging the Summoning Key, convincing them the Kreeholo were responsible for their endangerement and threatening the universe. The Kreeholo arrived but failed to prevent them from completing the sacrifical rituals needed to charge the Key. The Shadowman claimed the key and began to summon the Apothicons, revealing his true colours in the process. With the true nature of the Apothicons exposed, the survivors fought alongside the Kreeholo to take back the Summoning Key, imprisoning the Shadowman within and preventing the Apothicons from escaping the Dark Aether. However, the key was immediately stolen from the Kreeholo by Dr. Edward Richtofen, leaving Morg City in its corrupted state.

Richtofen, along with three other Humans collectively known as Primis, had been working with a Kreeholo known as Dr. Monty to stabilise the multiverse through the use of the Summoning Key, charging it by retrieving the souls of alternate versions of themselves, each in different corrupted locations infested with Zombies. Despite their success, the Shadowman escapes from the Summoning Key and summons the rest of the Apothicons to Agartha. With the Kreeholo's aid, Primis succeeded in killing the Shadowman and driving the Apothicons back once more, saving Agartha. However, to ensure the stability of the timelines, Monty proceeds to send Primis back in time to the Great War between Humankind and Apothicons in the 13th century, completing the cycle.