Here is the shape of it. In 1955, American television had no memory. A play aired live, once, and it was gone: no rerun, no archive, no second pressing. Serling wrote a play called Patterns, and the country went so crazy for it that the critic at the New York Times closed his column with ten words that had no mechanism under them: "a repeat performance at an early date should be mandatory." There was no mandatory in 1955. So the network bought the play a second time and performed the identical play live again, because the only instrument the medium owned for showing a thing twice was human beings. That was the economy Serling worked in. And when he tried to tell the Emmett Till story in that economy, twice, in 1956 and 1958, the sponsors and the agencies and the network censors sanded his plays into other states, other decades, other people.

The telephone went to speaker at three in the afternoon on a Tuesday in August, and the voice that came out of it belonged to family, calling from a small town in Nebraska where it had been raining for days. The call carried two things at once, the way a plains telephone always has. A death in the family. And a storm inventory, item by item, in the flat voice the plains keep for damage. Trees down across the county. The grain silo wrecked. More than a hundred utility poles broken, thirty-four of them in a row on one county road, snapped at ground level and thrown across into the lines and trees on the other side. And the town held its festival anyway, in the middle of the ruins, because the festival had been running since 1901 and a storm was not going to be the thing that stopped it.

The Watermark is about a city that computes its poor as calories. And it is about the man who does the computing. His name is Anselm Wenger. He is thirty-one that winter. He is a clerk of the Relief Bureau, the best computer on the fourth floor of the Provident Building. By day he prices the poor in units of food. By night he sings in the cellars of the Quarter, and the Quarter sings back. And in his room over the baker's, he writes down what the tables could not hold. On slips. In a hand smaller than the Bureau's hand. The slips live in a tobacco tin. Two archives, then: the building's and the tin's. The year this book covers is the year those two accounts settle.