One day Archie is amazed to see the most extraordinary sea creatures as he is playing on the pier. When he looks closely he finds that these are not like any other creatures he has seen before. Soon more mysteries are revealing themselves all around him and he is pitched into a danger-filled battle with the new curse. Can Archie summon all the energy, intelligence and perseverance needed to see this curse off, and to save himself, his family and his neighbours from a fate worse than death?