Lost Soul

Lost Souls (sometimes known as Soul Eaters) are ancient spiritual entities that live in another dimension and feed on human souls, turning them into other Lost Souls.

Characteristics
A Lost Soul has a similar appearance to a Shtriga, humanoid with a long black cloak. It has a somewhat distorted face and black or red empty eyes. Lost Souls live in a kind of inter-mundi, pocket-dimension outside of space and time as we know it. These monsters sometimes drag human souls out of the physical world, and into their "nest". Souls that are dragged to their nest cannot escape and will be trapped forever, even after the victim's eventual death. Other times, however, they merely use their black magic in order to turn humans into other lost souls. Souls will also begin to wither away. But, according to Death, souls can't be destroyed, so prolonged entrapment with the Lost Soul will make them look sicker and cadaveric. As the Lost Soul finishes with a house, it will close its nest and make a new one in another unfortunate house, and drag its victims along with it as well so that it can have an emergency "food stock" in lean times - or for "rumminating" their souls.

According to conventional lore, Lost Souls can't be killed under normal means. A Celtic sigil can trap them, but in general they are thought to be invulnerable to harm. However, humans found a sigil that could kill a Lost Soul when painted on the inside of its "nest" and the inside of the house it inhabited.

Some of the Lost Souls can mimic ghost's characteristics such as causing cold spots, EMF and flickering lights. On at least three occasions, the hunters believed they were dealing with ghosts, not the monster.

Powers and Abilities

 * Reality Warping - Lost Souls possessed unique and somewhat very large powers to create their own dimension called "The Nest". Naturally, Lost Souls inhabit a plane between the human world and another, a sort of inter mundi that exists outside of time and space, and by tapping a large amount of their powers, they created it when hunting their prey. The Nest takes on the appearance of the home it is in, albeit much darker and twisted to mess with their victim's emotions and make them vulnerable and tamed.
 * Soul Extracting - Lost Souls can remove the souls of human beings, dragging them into their realm, which results in their bodies being left in a coma until they die.
 * Super Strength - They show a degree of strength as they are able to knock down, and drag fully grown humans with one hand. They are also able to beat down humans and push them away with little difficulty.
 * Possession - Lost Souls can leave their spiritual realm and possess the body of a soul who is trapped within its "nest".
 * Invulnerability - Due to being an undead being that exists between this world and another, Lost Souls are very nearly invulnerable. Even when possessing someone, they can't be harmed by rock salt. A Lost Soul's only known weaknesses are a sigil that can trap them and a sigil that can kill them.
 * Electromagnetic Interference - Their presence caused lights to flicker.
 * Thermokinesis - They can lower or drop the surrounding temperature with their presence.
 * EVP - They can create many voice phenomenons like footsteps or creaking wood to lure their targets.