• Creature The Mackled Malaclaw is a creature of the shore and coastline, resembling a lobster. The malaclaw’s bite gives the victim bad luck for up to a week. It has light gray shell with green spots and is around twelve inches long. While it looks edible the Mackled Malaclaw should never… Read More
• Event The Magical Congress of the United States  was housed in a secret edifice somewhere in the Appalachian Mountains until 1760, when it was relocated to Williamsburg, Virginia, the home of Thornton Harkaway, then President of MACUSA (Pm). Unfortunately for the local No-Maj population, President Harkaway raised Crups, a type of… Read More
• Businesses, merchants, and shops The Magical Menagerie is a very crowded pet store in Diagon Alley, noisy with the sounds of all the animals, where Hermione bought Crookshanks. The proprietor is a witch who wears heavy black spectacles. She offers advice and sells things like rat tonic. Other creatures for sale… Read More
• Character Magorian acts as the leader of the Centaurs of the forest. He is not as rash as Bane, but he does not trust humans (OP30, OP33). Read More
• Character A “thin and nervous-looking” boy, in Ravenclaw and a year ahead of Harry. A candidate for the Slug Club because his Uncle Damocles invented Wolfsbane potion (HBP7), but not a favored member because he does not see much of his Uncle Damocles. Read More
• Creature The Matagot is a magical beast that resembles a large, black cat with bulging blue eyes. They are spirit familiars that guard the French Ministry of Magic but will not harm anyone unless they are provoked. When attacked, they multiply and mutate becoming more aggressive. If taken from their… Read More
• Thing A book about fantastic creatures found in Newt Scamander’s shed inside his brown leather suitcase (WFT). Read More
• Thing Memories can be removed from the head of a witch or wizard and placed into a vessels known as a Pensieve to be viewed and studied. After removal, memories can be tampered with, as Horace Slughorn did when he tried to revise and conceal his own memory of teaching Tom… Read More
• Potions Effect unknown, but given the characteristics of the Jobberknoll, presumably enhances the drinker’s memory. Read More
• Languages Merfolk language used above water (FB, DH8); Merfolk speak human languages underwater. It sounds like horrible screeching if heard in air. Dumbledore (GF26, HBP30) and Barty Crouch Sr. (GF7) can speak Mermish. Miranda Goshawk’s original The Book of Spells was translated into Mermish (BoS). Read More
• Creature A moke is a small magical lizard of Britain and Ireland which grows up ten inches long. The moke has never been noticed by Muggles thanks to its ability to shrink at will. This habit of  shrinking when approached makes the lizard’s silver-green skin prized by wizards and witches for purses and… Read More
• Creature A Mooncalf is a strange creature with smooth pale gray skin and narrow legs with large hooves that only comes out of it’s burrow during a full moon. It’s eyes are very large and bulgy, they sit on the top of it’s head. It’s enormous flat hind feet leave intricate… Read More
• Food and drinks Newt Scamander kept a crate of Mooncalf Pellets in his work shed. In 1926, Jacob Kowalski fed them to the Mooncalves inside Newt Scamander’s case (WFT). Read More
• Creature Someone interviewed by The Quibbler claimed to have brought back a bag of moon frogs to prove his claim that he had flown to the moon on a Cleansweep 6 (OP10). Read More
• Character Morfin Gaunt was the son of Marvolo Gaunt. He is first seen dressed in rags, his thick hair so matted with dirt the color was indistinguishable. He was missing several teeth, and his eyes, like those of his father and sister, looked in opposite directions. Morfin is a Parselmouth and… Read More
• Character A Ministry raid on his house in August 1992 turned up some extremely odd ferrets (CS3). Read More
• Character Female acromantula, wife of Aragog (CS15). Read More
• Creature The Mountain Troll is the largest and most violent of the various troll species. It stands twelve feet tall, with grey skin, a lumpy body, and flat horny feet. It exudes a powerfully awful smell, “a mixture of old socks and the kind of public toilet no one seems to… Read More
• Mountains, hills, and landforms Mount Greylock is a mountain in western Massachusetts in the U.S. whose highest peak is where Ilvermony School of Witchcraft and Wizardry stands. It is also where the Steward family lived in the 1600s (Pm). Read More
• Character Burdock Muldoon was Chief of Wizards’ Council in the mid-14th century. Muldoon tried to define the difference between a “being” and a “beast.” He decreed that any creature that had two legs was a “being,” and therefore deserving of better representation and treatment. When he called a summit meeting to discuss… Read More
• Character Merchiefteness of the Merfolk living in the Hogwarts lake.  She is described as “a particularly wild and ferocious-looking female.” (GF26)… Read More
• Creature The Murtlap is a rat-like creature with a growth on its back resembling a sea anemone, which when pickled can be used to promote resistance to curses. Read More
• Diseases and healing The bite from the rat-like Murtlap initially causes the victim to pass out. While not considered serious, there can be side-effects within 48 hours, such as flames erupting from their bottoms. Therefore victims should be monitored closely (WFT). Read More
• Character Myrtle Elizabeth Warren was a Ravenclaw student in the 1940s who was killed by the basilisk from the Chamber of Secrets. She became the ghost known as Moaning Myrtle. Read More