(all of this information has been borrowed and been reworded from Kelley's I do not claim ownership or having written it.)
What exactly is a demon?
A demon is a supernatural being that can exist either in the physical or spiritual world. Much like the human hierarchy and government, they are arranged by their knowledge and strength of power.
Eudemons and Cacodem[/u]
Within this demon hierarchy there will be good demons and bad demons (eudemons and cacodemons). However, one must keep in mind that being a good demon does not make you a good person. Merely, you are a demon that does not go out of your way to kill people and cause horro for humankind.
Half-Demons:
These are beings that are born to a human parent and a demon parent. In the books, the woman (mothers) are human, and the dominant demon gene is passed down from the father. A pure demon would have seduced or raped the woman, while in a human form, and she would have then given birth to a half-demon.
These half-demons do not inherit all of their father's powers, but have their own qualities depending on the type of demon that sired them.
Hierarchy:
Within the half-demon system, beings are stronger or weaker. There are more weaker beings than stronger beings. However, some half-demons who are so rare do not have varying strengths in power, but have their class and no lesser or stronger beings.
It is difficult to tell who fits in where in this hierarchy. It can be assumed that someone is an Exustio, for example, but it is not for sure unless the half-demon incinerates someone.
Types of Half-Demons:
(Taken word for word from Armstrong's site.)
Elemental
Fire - able to produce fire via physical contact. Levels increase the degree of heat produced. Emotional duress can unwittingly cause shows of power (i.e. fire demons literally have a hot temper!) As the levels increase, powers are cumulative (i.e. an Exustio can produce first, second OR third degree burns)
Igneus - can causes first degree burns, may be able to produce sparks
Aduro - can cause second degree burns, can ignite flammable material
Exustio - can cause third degree burns, can incinerate objects
Tempestras - 'storm demons'. Single-level subtype.
-cannot summon storms, but can control the weather within his/her immediate vicinity; calling forth wind, rain or lightening. (eg. Can keep rain off a windshield on a car.)
Dimensional
Telekinetic - able to displace/move objects without contact or other physical means. Levels increase range, object size and displacement distance. Telekinetic demons have a 'tell' something they do before moving an object (e.g..may make a fist or twitch fingers). Power decreases as temper/frustration rises (i.e. lose concentration). Displacement distance and force decreases with size/weight of object. (e.g..Can shift a car only inches, but can hurl a book across a room with enough force to cause injury)
Migro
- range: within sight
- object size: small (approx 10 lb max)
- displacement distance: minimal (less than 6 inches)
Agito
- range: within sight
- object size: not larger/heavier than self
- displacement distance: approx max 10 feet
Volo
- range: approx 50 yards (if not in sight, must be able to picture object and its placement)
- object size: pretty much anything not nailed down
- displacement distance: approx. max 20 feet
Teleportation - able to displace/move self instantaneously. Levels increase target range, direction and displacement distance.
Tripudio
- target range: within sight
- direction: horizontal only
- displacement distance: approx max 12 inches, would appear as a quick move, not teleportation
Evanidus
- target range: anywhere within displacement distance
- direction: horizontal only
- displacement distance: approx max 10 feet
Abeo
- target range: anywhere within displacement distance
- direction: horizontal and vertical (i.e. could teleport to second floor or basement when possible)
- displacement distance: approx. max 50 feet
Physical
Vision - enhanced visual abilities. Levels increase the number of powers rather than range or acuity, and are cumulative (i.e. an Aspicio also has the powers of an Acies and a Conspicio). Powers are not a permanent enhancement, but must be invoked and require full concentration to maintain.
Acies - enhanced visual range (can see distant objects more clearly)
Conspicio - can induce temporary blindness
Aspicio - can see through solid objects (produces a small window of 'x-ray vision')
Ferratus - 'iron demons'. Single-level subtype.
-Extremely rare species. A single power in which they can make their skin as hard as iron.
Thanks to storyxuntold for the awesome siggie!
What exactly is a demon?
A demon is a supernatural being that can exist either in the physical or spiritual world. Much like the human hierarchy and government, they are arranged by their knowledge and strength of power.
Eudemons and Cacodem[/u]
Within this demon hierarchy there will be good demons and bad demons (eudemons and cacodemons). However, one must keep in mind that being a good demon does not make you a good person. Merely, you are a demon that does not go out of your way to kill people and cause horro for humankind.
Half-Demons:
These are beings that are born to a human parent and a demon parent. In the books, the woman (mothers) are human, and the dominant demon gene is passed down from the father. A pure demon would have seduced or raped the woman, while in a human form, and she would have then given birth to a half-demon.
These half-demons do not inherit all of their father's powers, but have their own qualities depending on the type of demon that sired them.
Hierarchy:
Within the half-demon system, beings are stronger or weaker. There are more weaker beings than stronger beings. However, some half-demons who are so rare do not have varying strengths in power, but have their class and no lesser or stronger beings.
It is difficult to tell who fits in where in this hierarchy. It can be assumed that someone is an Exustio, for example, but it is not for sure unless the half-demon incinerates someone.
Types of Half-Demons:
(Taken word for word from Armstrong's site.)
Elemental
Fire - able to produce fire via physical contact. Levels increase the degree of heat produced. Emotional duress can unwittingly cause shows of power (i.e. fire demons literally have a hot temper!) As the levels increase, powers are cumulative (i.e. an Exustio can produce first, second OR third degree burns)
Igneus - can causes first degree burns, may be able to produce sparks
Aduro - can cause second degree burns, can ignite flammable material
Exustio - can cause third degree burns, can incinerate objects
Tempestras - 'storm demons'. Single-level subtype.
-cannot summon storms, but can control the weather within his/her immediate vicinity; calling forth wind, rain or lightening. (eg. Can keep rain off a windshield on a car.)
Dimensional
Telekinetic - able to displace/move objects without contact or other physical means. Levels increase range, object size and displacement distance. Telekinetic demons have a 'tell' something they do before moving an object (e.g..may make a fist or twitch fingers). Power decreases as temper/frustration rises (i.e. lose concentration). Displacement distance and force decreases with size/weight of object. (e.g..Can shift a car only inches, but can hurl a book across a room with enough force to cause injury)
Migro
- range: within sight
- object size: small (approx 10 lb max)
- displacement distance: minimal (less than 6 inches)
Agito
- range: within sight
- object size: not larger/heavier than self
- displacement distance: approx max 10 feet
Volo
- range: approx 50 yards (if not in sight, must be able to picture object and its placement)
- object size: pretty much anything not nailed down
- displacement distance: approx. max 20 feet
Teleportation - able to displace/move self instantaneously. Levels increase target range, direction and displacement distance.
Tripudio
- target range: within sight
- direction: horizontal only
- displacement distance: approx max 12 inches, would appear as a quick move, not teleportation
Evanidus
- target range: anywhere within displacement distance
- direction: horizontal only
- displacement distance: approx max 10 feet
Abeo
- target range: anywhere within displacement distance
- direction: horizontal and vertical (i.e. could teleport to second floor or basement when possible)
- displacement distance: approx. max 50 feet
Physical
Vision - enhanced visual abilities. Levels increase the number of powers rather than range or acuity, and are cumulative (i.e. an Aspicio also has the powers of an Acies and a Conspicio). Powers are not a permanent enhancement, but must be invoked and require full concentration to maintain.
Acies - enhanced visual range (can see distant objects more clearly)
Conspicio - can induce temporary blindness
Aspicio - can see through solid objects (produces a small window of 'x-ray vision')
Ferratus - 'iron demons'. Single-level subtype.
-Extremely rare species. A single power in which they can make their skin as hard as iron.

Thanks to storyxuntold for the awesome siggie!
