For a book I'm writing I need more types of supernatural beings?

Doppelgangers- The word doppelganger is actually German and means 'double walker'. A doppelganger is a duplicate or look alike of a living person and usually brings bad luck. In several myths, it is said that if a friend or relative sees your doppelganger then it is a foreshadowing of danger or illness, while if you see your own doppelganger, it is an omen of death.

Changelings- A non-human that is left as a replacement for a human child that has been stolen.

Wichtlein- A goblin/fairy that lives in mines and knocks three times as an announcement of a death in the mine, they also make other sounds such as digging for smaller misfortunes.

I know some others but my mind is drawing a blank now... hope I helped!^^

Tricksters - They like to give jerks there Just Desserts and usually in a fatal way

Shtriga- Steal life essence and usally feed on children causing them to go into comas feed on sleeping children appear as a feeble old woman ususlly when not feeding

Djinn- Make it appear that they have granted you a wish but real causes you to become uncounsious and feed off of you.

Demons- harldy think they need described

Wendigo- once humans untill the consumed so much human flesh they became something else they sleep for long periods of time and are suoer fast they store humans to be eaten later.

Leviathan- oldest monster eats humans can take the sahpe of anyone by touching them bleed black goo and cant be killed unless you cut off the head and seperate it completely from the body.

Woman in White- usually a woman who found out he husband cheated she killed her kids the committed suicide. Her ghost kill those who have been unfaithful

Reaper- Collect souls

Ghouls- eat people alive

Prophets- can see the future

Black dogs- sometimes good somethimes omens for plauge and death.

Douplegangers- a copy of s person usually evil.

Dragons- you probably know what these are

Too many to name and describe but here are some links:

http://en.wikipedia.org/wiki/List_of_legendary_cre...

http://en.wikipedia.org/wiki/List_of_legendary_cre...

http://www.mythicalcreaturesguide.com/page/List+of...