Last Reflection / Remus Lupin (English)

"In the world of magic and shadows at Hogwarts, everyone has forgotten the name of Raven Potter, James Potter's twin sister, who mysteriously disappeared in her sixth year. Everyone, except Remus Lupin.

Now, years later, Remus returns to Hogwarts as a professor, but the ghosts of the past continue to haunt him, especially the memories of Raven, his closest friend... and the love he never confessed. When he accidentally uncovers an ancient secret in the Room of Requirement, his world changes forever: Raven isn't dead; she's trapped in the most unexpected place... the Mirror of Erised.

Only Remus can see her, only he remembers her, and now he must race against time and the forces of dark magic to save her. But what happens when the person you yearn for most has been lost for so long? Can love overcome the barriers of the past and present, or will it be too late for them both?"