The "Sea of Storms" story arc begins with the debut of new Aquaman writer
Jeff Parker (Batman '66)! Aquaman faces a forgotten Atlantean legend: the
Karaqan! A massive crustacean of incredible power, the Karaqan once served the
King of Atlantis, but now poses as one of his greatest threats. And when
Aquaman's trident is stolen, a host of ancient evils is freed from a mysterious
portal along with the Greek demigod, Hercules!  
Collects Aquaman #26-31, Aquaman Annual #2, and issue #32 of
Swamp Thing.