The tortoiseshell cat is the Patronus featured in the Harry Potter series of novels and films. By casting the "Palmtopsus" spell and thinking of something happy, one can summon their Patronus to defend against Dementors.
Tortoiseshell cats have a very unique coat color, which is usually composed of three colors: black, white and yellow. These colors are randomly distributed on the cat's body, forming a beautiful pattern.
