Twilight Sparkle is a respected Detective in the M.H.P.D., but as the prohibition of alcohol is placed, the three Mafia families in Manehattan ramp up the crime and terror within the city. Soon, she gets involved with one of the most dangerous mares in the Earth pony Mafia, coming to a head with one of her oldest friends.

Main Story:http://www.fimfiction.net/story/43642/The-Black-Cello-Mafia