The Edge of the World by Michael Swanwick

The day that Donna and Piggy and Russ went to see the Edge of the World was a hot one. They were sitting on the curb by the gas station that noontime, sharing a Coke and watching the big Starlifters lumber up into the air, one by one, out of Toldenarba AFB. The sky rumbled with their passing. There’d been an incident in the Persian Gulf, and half the American forces in the Twilight Emirates were on alert.

“My old man says when the Big One goes up, the base will be the first to go,” Piggy said speculatively. “Treaties won’t allow us to defend it. One bomber comes in high and whaboom—” he made soft nuclear explosion noises—”it’s all gone.” He was wearing camouflage pants and a khaki teeshirt with an iron-on reading KILL ‘EM ALL AND LET GOD SORT ‘EM OUT. Donna watched as he took off his glasses to polish them on his shirt. His face went slack and vacant, then livened as he put them back on again, as if he were playing with a mask.

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https://www.fantasy-magazine.com/fm/fiction/the-edge-of-the-world/

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