The streets flex with the Victorian equivalent of rush hour, rising at daybreak and then subsiding with nightfall; streams of people pour into each daily service at St. Luke’s; small queues form around the busiest street vendors. In front of 40 Broad Street, as baby Lewis suffers only a few yards away, a single point on the sidewalk attracts a constant—and constantly changing—cluster of visitors throughout the day, like a vortex of molecules winding down a drain. They are there for the water.

