Lorelei MacKenzie is many things to many people.
To her parents, she is a caring, dutiful daughter.
To her neighbors, she is a protective single mother of a mischievous eleven-year-old.
To her daughter, she is the best mum in the entire world.
To her colleagues, she is the Muggle Studies professor at Hogwarts and next-in-line for the Headship of Gryffindor House.
To her friends, she is a talented Quidditch player, a fully-trained Mediwitch, and a registered Animagus.
To society, she is the Muggleborn wife of traitor and mass-murderer, Sirius Black.
Lorelei has always believed that her husband was innocent of the crimes of which he was accused, but she never had any proof. So, instead of trying to fight the system, she retreated into it, reclaiming her maiden name rather than allowing her daughter to suffer the taint of her father's perceived crimes.
Now, though, everything is about to change. It is time for Lorelei's daughter to go to Hogwarts, and Harry Potter will be in her year: Harry Potter, the Boy-Who-Lived, the boy who is Lorelei's godson.