King Shark is a supervillain appearing in comic books published by DC Comics. The character, also known as Nanaue, was created by writer Karl Kesel and artist Tom Grummett. King Shark's first key appearance was in Superboy #0 as a cameo before making his first full appearance in Superboy #9. The character serves as an adversary to Aquaman, Flash, Batman, and Superboy.

"One Year Later" is a 2006 comic book storyline running through the books published by DC Comics. As the title suggests, it involves a narrative jump exactly one year into the future of the DC Universe following the events of the “Infinite Crisis” storyline, to explore major changes within the continuities of the many different comic books within the DC Comics range.