*What time is it? It's Adventure Time! As we prepare for the series finale of Cartoon Network's beloved animated series, everyone's favorite genderbent citizens of Ooo star in this all-new, original Fionna and Cake story, exclusive to this Free Comic Book Day issue. Fionna and Cake take a look at some of their favorite times together over the years before they jump off into another adventure. *Source: freecomicbookday.com