The 12 stories that comprise Maine writer Morgan Talty’s debut novel, “Night of the Living Rez,” were written over the course of nearly five years and changed shape, tone and point of view multiple times before coalescing into his intimate, atmospheric, decade-spanning narrative that’s set to be published on July 5. Talty, a member of the Penobscot Nation who spent the majority of his youth living on Indian Island, provides a window into the world of an Indigenous family living on the reservation, experiencing joy and struggling with dysfunction in equal measures.