Thing is, he’s seen so many ends of days by this point. Empires rise and fall, cities shake to dust, war sweeps a country empty of life, and still he goes on, one day after the next like so many weary footsteps. What else should he do? They burn the atmosphere and he spends a millennium or more choking on ash, squeezing between glaciers a mile high, the last human outside the domes. They dig plague into the soil and he erupts in boils, weeps blood, loses his teeth, keeps walking, who cares.
The oceans rise and he haunts the sunken cities. None of them are familiar, not really, but then all cities look alike after awhile, just a house someone took the roof off of. He’s in, oh, someplace to the north, near where the glaciers split around the mountains, climbing hills in murky water the temperature of spit. There used to be a market here where people shouted at you, a space carved out of the terseness of the rest of the city. “Fresh fish!” Ahasuerus bellows, why not, but all he does is spook an octopus deeper back into the stalls.
Oh, well. Life goes on.