It refers both to a magically induced brand that every Death Eater bears on his or her inner left forearm, and to the same symbol summoned in the sky by the curse Morsmordre.1 1 Appearance 2 On the arm 3 In the sky 4 Dark Mark similarities 5 Behind the scenes 6 Appearances 7 Notes and references The Dark Mark appears as a. The Dark Mark is the symbol of Lord Voldemort and his Death Eaters.