And then the river started bringing more than papers. One July, after a storm that flattened satellite dishes like fallen petals, the river disgorged a cluster of red balloons that bobbed at the water's edge like an accusation. Children screamed in delight; the mayor frowned as if this were a problem in need of committees. The balloons bore names sewn into their seams—names that no one in Derry recognized and names that were familiar only in the prickly half-memory before sleep. The Welcome welcomed them too, opening a door that had never been there before: a side room lined with mirrors that did not reflect the person standing before them but the person they had been talking about.