Its the End of the World and Im In My Bathing Suit by Justin A. Reynolds

Eddies stuck at home doing a monstrous pile of laundry. But midcycle the power goes out He sets out to explore the seemingly empty neighborhood in his swim trunks and as night falls he and a few other neighbourhood kids realize that they arent just the only people left in the neighborhood they might be the only people left ... anywhere Paperback softback