Styx-side

As the London underground grew, there were always going to be tunnels that got forgotten. Trainlines and platforms that died. The underground of London is labyrinthine and confusing - it extends all the way beneath the city and beyond.

And in the deeper tunnels, the ones that don't seem to quite fit with the City Planner's maps, you can almost hear running water...

Styx-side is the Sin-Eater nickname for the network of tunnels, platforms and Avernian Gates beneath London. Most know of it as a place that's usable, but dangerous. There are many things beneath London, things even the dead fear.