The Last City
The Redwater is a notorious drug den and source of the eponymous red water, a thick liquid opiate typically inhaled via hookah. The Redwater is notorious mostly for the breadth of its clientele welcoming anyone who can afford a dram and a quiet corner.
The Redwater is a sprawling complex of corridors, tiny rooms, nooks, and passages taking up most of a tenement block in a part of town generally considered to be seedy, but not so dangerous as to actively threaten the higher-class customers who arrive cloaked and often veiled to partake of a soothing evening of blissful, vivid hallucination.
Nobody knows who owns the Redwater. Staff refer merely to "the Management" when relaying orders or policies. The Redwater has been raided and even shut down from time to time but it always re-opens, rarely the worse for wear.