The Gauntlet (Amazing Spider-Man #615–616)

This two-part arc, titled "Keemia's Castle," sees Spider-Man and Carlie Cooper investigate a series of murders linked to a missing girl named Keemia.The trail leads to Governor's Island, where Sandman has undergone a dark evolution: he can now create multiple independent "selves," but he’s losing control of them. While Flint Marko tries to act as a father figure to Keemia, his rogue duplicates turn out to be the real killers, forcing Spidey into a gritty battle against a fractured, more dangerous version of the classic villain