" To get them out of the way, he had already pinned up his posters on the narrow strips of wall between each of the cupola’s windows. One of them was a movie poster for a Friday the 13th movie, with a full-body shot of the hockey-masked Jason Voorhees coming at you with a machete. Another depicted the cast of the TV show The Walking Dead, with the character Rick standing on top of a school bus aiming his giant revolver. Romero’s original black-and-white Night of the Living Dead. The popular zombie game Left 4 Dead 2. "

― S.A. Hunt , Burn the Dark (Malus Domestica, #1)