รUNDERWORLDร part five! Desperate to penetrate the supernatural barrier surrounding Atlantis, Mera enlists the help of an ex-Atlantean magician: Garth, the Titan known as Tempest! But Aquamanรs former protลฝgลฝ has sworn off his mystical practices, and the magisters of the Silent School donรt take betrayal lightly. Meanwhile, as Arthur and Dolphin fight off both the armies of the Drift and Krushรs criminal empire, Vulko discovers that which the former will need to take back his throneรsomething forgotten!