The Headmaster's Daughter Book 3: The Little Princess

Now that Anastasia Dumbledore's lineage has come into light, everyone knows she is Albus's daughter, an experiment, and an obscurus. Half her friends whisper behind her back. Malfoy openly mocks her. Adults pity her for a past she cannot remember. Facing her third year at Hogwarts, Anastasia must decide if her father's love outweighs his sins.