Aquaman: Sword of Atlantis #47

The waters of Atlantis run red in this January 2007 installment of Aquaman: Sword of Atlantis, and the cover — rendered by Butch Guice — makes the threat unmistakably clear: a hulking, shark-headed humanoid creature lunges forward with claws outstretched, its massive silhouetted body filling the frame against a chilling, blood-tinged backdrop. The blazing tagline "Blood in the Water!" says everything you need to know about the tone Kurt Busiek and Karl Kesel are setting for "Crown of Thorns, Part Two: Coral Song." If you're following this deep-sea adventure series, this is one cover that earns its menace.