Robert Kirkman has topped last month's shocking twist with another: The Walking Dead comic book series, which began in 2003, is concluding with new issue No. 193. "I hate knowing what's coming," Kirkman wrote in the concluding pages of Walking Dead #193. "As a fan, I hate it when I realize I’m in the third act of a movie and the story is winding down. I hate that I can count commercial breaks and know I’m nearing the end of a TV show. I hate that you can feel when you’re getting to the end of a book, or a graphic novel. Some of the best episodes of Game of Thrones are when they’re structured in such a way and paced to perfection so your brain can’t tell if it’s been watching for 15 minutes or 50 minutes ... and when the end comes ... you’re stunned." ALSO: Why the comic book ending won't have much impact on the AMC series.