Welcome to Victorian London; the home of the Artful Dodger, Sherlock Holmes... and Ben Kingdom, cocky street urchin - and the saviour of mankind. Unknown to mere mortals, an ancient battle is being waged across the city.
The year is 1892. The Legion have unleashed an ancient darkness on London, leaving crime and chaos in its wake. From their rooftop base, The Watchers fight to restore order - looking to Ben Kingdom for hope. But unbeknown to them, Ben is harbouring a deadly secret that could put them all in danger. As the Legion gather their forces for invasion, all they need for victory is the final Coin of Blood.