Superman #149

Against a stark black background crackling with electric-blue lightning, a striking figure in a white-and-dark costume bearing a stylized Superman symbol strides forward with cool, otherworldly confidence — her flowing blue hair and the energy coruscating around her making for one of 1999's most arresting Superman covers. The title asks "Who Is Strange Visitor?" and this issue, by Randall Frenz, Ron Frenz, and Sal Buscema, begins the search for an answer. If you love a good mystery wrapped in supercharged visuals, this is a great place to jump in.