A series of unexplained murders on the Darkside of London has Jonathan tangled up in another dangerous mystery. With the help of his ally, private detective (and werewolf) Elias Carnegie, the pair discover that Jonathan's mother was investigating similar murders before she vanished. Jonathan becomes obsessed with solving the crimes and finding his mother. Meanwhile, the Ripper family is involved in a deadly scandal that goes right to the heart of Darkside society and they're watching Jonathan. In his desperation, can Jonathan solve the murders and find his mother before the Rippers find him?