The Dickensians, Bill Psyches’ gang of street thieves and thugs, are largely concerned with controlling the Node of The Engine that Feygin has discovered in the sewers under the streets and alleys that form their territory. Bill views The Engine as a means to greater power and wealth, cementing his iron grip on those he wishes to dominate. Nancy, once kind and caring, is now solely concerned with cowing the Node to her will. The darker side of Alchemancy is her passion and the creation of an army of demented Urkin to aid Bill her focus.
Feygin and Dodger represent the other side of the Dickensian coin in that, whilst they appreciate the vast trove of treasure they are accumulating, they also desire to see the young street thieves that the Urkin had once been returned to their former selves – especially the unfortunate Ollyver.
Whilst these two competing aims run underneath the efforts of the Dickensians, they remain a united Faction in their efforts to control the Node. It’s just the end goal of that control wherein they differ.