Located on the River Thames, London has been a major settlement for two millennia. The low-income borough of Lambeth has been largely taken over by London's mutant population and is now known as Mutant Town.
Just outside, Thames Water has a section of street torn up and they're working on the sewage pipes. Inside, life seems to be going on more or less as normal. In fact, the residents seem a bit surprised to see him inside.
"Is there something wrong?" A woman checking her mail down at the communal mailboxes asks. "We've not been running our tap since it happened."
Nash, who was also dressed as a pest control worker, was supposedly looking around outside for any signs of leeches. While he was actually doing this, he was also trying to figure out just what sort of repairs are going on in the sewer.
"It's better since the Thames lads were out, but they're still working on the sewage outside," she says, reaching her door and unlocking it to let him in.
Outside the crew seems to mostly be doing what they're supposed to. They're cleaning out blockage from sections of pipe, and verifying nothing's there to backwash again.
"Be it ever so humble," she says as she leads him into the bathroom. It's more or less a normal flat, but here particularly there is an acrid smell from the chemicals she used to clean.
Something corrosive. Long since washed away, but not a natural chemical. Traces of it linger in the deeper part of the grooves and, as Nick looks them over, there almost seems to be a repeating pattern in the grooves.
It's hard to quite get a good view of it because it's on the inside of the pipe, but the whorls in each groove definitely seem to repeat. They look almost purposeful. Carved.