Yeah, I've seen it—there's a tag splashed on the back wall of the old train depot near the riverbank, right where the tracks used to cut through the docks. The symbol is a twisted gear and a lightning bolt, all in that neon green they use for the night shift crew. If you’re looking for a power source, check that spot after midnight, when the lights go low and the tag glows. It’s probably a clue to something underground, but I’d keep an eye out for any loose pipes or cables running under the platform. Trust your gut, but keep an eye on the concrete cracks. Good luck, and keep your notebook handy.