The Everhaust Beasts

Creatures created by Avalore, the Goddess of Death , the Raven Queen, before the Cycle was made, Everhaust beasts are known as the fathers of Vampires, as the three Everhaust Beasts that exist in the world bled into the three Bloodwells, creating the first vampires. Being made before the Cycle, Everhaust Beasts are unable to die under any circumstance, and are noted as being planes jumpers, able to freely jump between different planes of existence. The danger comes when an Everhaust Beast decides to stay in a populated plane, such as the Material plane or Feywild, it could cause havoc for the local population. Because of this, the three Everhaust Bests have been sealed in some kind of way. One has been imprisoned by magic in Feywild, another has been trapped deep in the Kathoid Vault, which prevents its plane jumping, and another has been petrified in stone, broken into pieces and buried beneath the earth by The Everhaust Beasts.
Taking the form of an almost ethereal creature, with many limbs and bones that vaguely hold together the creature's form. With bat like ears, and many eyes, and being the size of a hill giant, Everhaust Beasts are unique in appearance to many other creatures and easy to identify. It is said that the week willed can go mad by simply looking at the creature, though this is yet to be proven.