In medieval Europe, black cats were thought to be animal companions that helped witches perform spells. Some even believed them to be witches in animal form. The black cats on The Wise Witches Black Cats 1/2 Pint Mug might simply be featured there as nothing more than a cat decoration on a Halloween mug to enjoy drinking coffee from, but once you place this Emma Bridgewater mug back in your cupboard, who knows what bewitching in the kitchen may occur …