Skylla is a separate city from the Edge, lying just north of it. It is ancient, dark, forbidding, depressed, impoverished, grimy, septic, and ugly. It serves as the port for the island, and sailors can often be found carousing here.
Along the road to Skylla you can find Darkling Bros. Diversions & House of Grotesques, a run-down amusement park that is home to a crew of mutants and misfits.
Skylla isn’t served by the garbage men; the locals instead cart their trash (whatever can’t be flushed down the sewer into the sea) to any of several festering dumps.