Seasoned sailor Captain Orne, after many hours of struggle in the stormy sea off the coast of Martin's Beach, managed to overcome a huge creature unknown to science that had attacked his ship. Scientists studied the harpooned beast and concluded that the organism was still developing, and that the fifteen-meter-long monster was only a child, a young specimen of some much larger being. Since then, the residents of Martin's Beach have not been able to shake the feeling that someone is watching them from the sea…