Harriet Potter and the Holy Grail

Part 2 of Harriet Potter and the Guardians of Atlantis. Harriet Potter is finally coming to Hogwarts, along with her friends, Hermione and Ron. But little does she know that the Holy Grail is hidden at Hogwarts, Voldemort is determined to get it, and her Defense against the Dark Arts teacher is actually the (dark?) witch Morgana!