Step inside the stunningly illustrated bugs-at-dusk pages of McSweeney’s 81 to devour a portfolio of paintings by Pulitzer Prize winner and national treasure Percival Everett; new stories by Souvankham Thammavongsa, Ashley Nelson Levy, Sam Munson, and Shruti Swamy; a queer Dracula comic by Michael DeForge; and an essay by octogenarian Suz