Nargles are magical creatures that are mentioned in the Harry Potter series. They are believed to be mischievous and thieving creatures that live in mistletoe. Luna Lovegood is the only character in the series known to believe in their existence. Nargles are described as having light purple to black skin, two thin arms and legs with long fingers and toes, bat-like ears, large white eyes, pointy noses, and sharp teeth. They are seven inches long and three inches wide. Nargles are mischievous trouble-makers that enjoy making messes and stealing things. They dont trust anyone but themselves, which makes them impossible to befriend. Nargles live anywhere where they can make trouble and often live in mistletoe to attack people kissing underneath. They are classified as XX, which is the second level of dangerousness, and are allergic to butterbeer and Dirigible Plums.

It is unclear whether Nargles actually exist in the wizarding world, as their existence is only mentioned by Luna Lovegood, and her reliability as a source is debatable. Rowling never directly confirms or denies their existence in the wizarding world. Even if Nargles may not exist within the world of Harry Potter, they hold a significant symbolic meaning. They reflect Luna’s unique perspective and her refusal to abide by others’ views of what is “real” or “possible.” Luna’s belief in Nargles, despite the skepticism of her peers, represents her acceptance of the unknown and the unproven.