About the book: 2020 / Category: slash, Rating: NC-17, Size: Maxi, Summary: Harry Potter, heir to the head of the mafia clan that entangled the East End of London , and Professor Snape, a famous musician, artist of the London Symphony Orchestra and violin teacher at the Royal Academy of Music, are two parallel universes that would never have intersected if not for the loss of Amati’s violin and the issue of freedom of choice.