It is 1862 and London is the epicenter of the Industrial Revolution, full of activity and excitement. Its streets are completely upset by the construction of the futuristic first underground railway in the world, the famous and now iconic London Underground. When excavations reveal the presence of a corpse, no one imagines having kicked off the last deadly chapter in the centuries-old battle between Assassins and Templars. Well hidden in the streets of the city, meanwhile, an Assassin who holds terrifying secrets has a mission that only he can carry out: to annihilate the death grip of the Templars on the nation's capital. Soon the Brotherhood will know him by the name of Henry Green, mentor of Jacob and Evie Frye. For the moment, he is simply The Phantom. The story of this new chapter of the Assassin's Creed saga is set once again in a period of epochal change, in the fastest growing metropolis in Europe: the Great Universal Exposition, the evolutionary theories of Darwin, Oliver Twist and the other novels of Dickens, the industrial revolution, the first major reforms in the field of work and commerce, are just some of the events and characters that frame it. And London - cultured and elegant but also overpopulated and gray with smog - is the fascinating setting for the exploits of the new Assassin.
