The unknown creature is an unknown entity born between hell and heaven, The entity is some kind of unknown demon or mysterious monster with supernatural powers, The monster likes to appear at night on the road without anyone, the chance of seeing it is really, really slim, The monster can teleport, move through matter etc... The entity also sometimes likes to help if it finds a human who is not afraid of it, But the more the person is afraid of the entity, the more aggressive the entity become