The only other item in the bag was a coin, a quarter. The shape and heft of something once so common made it difficult for him to breathe. Donald thought of an entire civilization, gone. It seemed impossible for so much to be wiped out, but then he remembered Roman coins and Mayan coins sitting in museums. He turned this coin over and over and contemplated the only thing unusual about him holding a trinket from a world fallen to ashes—and that was him being around to marvel at the loss. It was supposed to be people who died and cultures that lasted. Now it was the other way around.

