Grim

Grim was one of the jinn mentioned being in the company of Robin Good Fellow in a seventeenth century pamphlet. He and his fellow jinn, Gull, Patch, and Pinch are all said to have  shape-shifting abilities. According to William Shakespeare's play, A Midsummer Night's Dream, Grim would bother those who traveled at night appearing to them as a fire, headless bear, horse, or hound, and making frightening sounds chase after them. In The Tempest, he was said to ride upon the back of bats to fly through the night sky, to roost with the owl, and drink nectar from cowslip blossoms.