Jason Aaron 
Once Upon a Time at the End of the World #11 [PDF ebook] 

From their initial meet cute in the wasteland to the paradise oasis they built in adulthood, everything in Maceo and Mezzy’s story has led to this. Torn asunder by the events of the critically acclaimed Book Two, each faces old age and the unforgiving end of all things, isolated on a planet breathing its last breaths. But fate has other plans for these star-crossed lovers, and they will be reunited one last time… with nothing less than the fate of the entire world at stake. Iconic artist Nick Dragotta (East Of West, Ghost Cage) joins New York Times bestselling and Eisner and Harvey Award winning writer Jason Aaron to bring this epic post-apocalyptic love story to an unbelievable conclusion that no comic book reader can afford to miss.