Magical Creature -- Dementors

The Dementors are soulless creatures considered to be among the foulest beasts on Earth. They are soul-sucking fiends who guard the wizard prison, Azkaban, until after the fall of Voldemort. In the Harry Potter fantasy, Dementors appear to have a generally human shape, approximately ten feet in height, but covered in dark, hooded cloaks that reveal only grey, decayed hands. The wraith-like creatures have no eyes, and there is a large hole where the mouth should be. They grow like fungi in the darkest, dankest places, creating a dense, chilly fog. They appear to possess a few traits of magic, notably, their ability to glide unsupported in either world.

Here is a close-up picture of Dementors. Don't be scared baby, it doesn't hurt.