Jason Aaron 
Once Upon a Time at the End of the World #12 [PDF ebook] 

Maceo and Mezzy’s paths cross yet again, after Maceo tracks her down seeking information on the ravagers. Finding her living with a small group of ragged and sickly survivors, Maceo discovers Mezzy’s shocking connection to the group and their world-ending machinations. As Maceo sets off to fight what might be his final battle Mezzy is faced with the most important choice she will ever make.