Mjollnir: Mythological hammer belonging to the Norse god of thunder, Thor. In Swedish, its name literally means ‘crusher’, and was capable of destroying mountains or felling giants with a single strike. Functions as a boomerang and returns to the hand of the one who throws it. When worn as an amulet, it is seen as a potent symbol of protection.

Mordred: A notorious figure of Arthurian legends. Known in some cases as King Arthur’s illegitimate son, he proved himself to be traitorous by fighting Arthur at the Battle of Camlann, where Mordred was slain by Arthur, but which also left the legendary king fatally wounded.

Mourning: The act of expressing grief; the dress or other tokens of mourning; the period during which one is mourning a death.

Necromancer: (Middle English via Old French nigromancie from medieval Latin nigromantia, changed from Late Latin 'necromantia', from Greek 'nekromanteia' (as necro-, -mancy), meaning 'black' and 'divination by'): a sorcerer: a practitioner of witchcraft involving the reanimation of the dead: a magician who can predict the future by communication with the dead.