"XIII" is a comic book series created by Jean Van Hamme and illustrated by William Vance. It follows the story of a man suffering from amnesia who discovers he is involved in a conspiracy related to his identity. The series combines elements of mystery, action, and political intrigue as the protagonist seeks to uncover the truth about his past. The comic was first published in 1969 and has since been adapted into various media, including video games and a television series. The distinctive art style and gripping narrative have made "XIII" a notable work in the world of graphic novels.