Hogwarts Girls: Meet these four best friends sorted into different Hogwarts houses! There is Gracie, a Gryffindor who is a fierce half-blood. She has a cat name Gala. There is Reina, a Ravenclaw who is a studious half-blood. There is Sierra, a Slytherin who is an ambitious pure-blood. Lastly, there is Holly, a Hufflepuff who is a sweet muggleborn. She has a dog named Harmony! #harrypotter #gryffindor #ravenclaw #slytherin #hufflepuff #hogwarts