In decaying Northampton, eternity loiters between housing projects. Among saints, kings, prostitutes, and derelicts, a timeline unravels: second-century fiends wait in urine-scented stairwells, delinquent specters undermine a century with tunnels, and in upstairs parlors, laborers with golden blood reduce fate to a snooker tournament. Through the labyrinthine streets and pages of Jerusalem tread ghosts singing hymns of wealth and poverty. They celebrate the English language, challenge mortality post-Einstein, and insist upon their slum as Blake’s eternal holy city in “Moore’s apotheosis, a fourth-dimensional symphony” (Entertainment Weekly). This “brilliant . . . monumentally ambitious” tale from the gutter is “a massive literary achievement for our time—and maybe for all times simultaneously” (Washington Post).