Other editions of book Secret Under the Sea

Why is his dolphin acting so strangely? Something must be wrong. It is the year 2013, and Robby lives in an Underwater Research Station with his scientist parents. Most of the time he has fun exploring the ocean caves with the dolphin who is his favorite companion. But something has frightened the dolphin, and Robby sets out to investigate. Then he finds the giant footprints. And he knows that something enormous and unknown is walking here across the bottom of the sea.

Dive into adventure in the last unknown territory on Earth - the sea. Join Robby Hoenig and a cast of characters as unusual as any ever met on a distant planet...In the first Robby Hoenig adventure, Secret Under the Sea, an aquatic visitor from another world is threatened by a criminal gang...Gordon R. Dickson's Robby Hoenig adventures are timeless young adult stories in the tradition of Arthur C. Clarke's Dolphin Island.

Why is his dolphin acting so strangely? Something must be wrong. It is the year 2013, and Robby lives in an Underwater Research Station with his scientist parents. Most of the time he has fun exploring the ocean caves with the dolphin who is his favorite companion. But something has frightened the dolphin, and Robby sets out to investigate. Then he finds the giant footprints. And he knows that something enormous and unknown is walking here across the bottom of the sea.

Why is his dolphin acting so strangely? Something must be wrong. It is the year 2013, and Robby lives in an Underwater Research Station with his scientist parents. Most of the time he has fun exploring the ocean caves with the dolphin who is his favorite companion. But something has frightened the dolphin, and Robby sets out to investigate. Then he finds the giant footprints. And he knows that something enormous and unknown is walking here across the bottom of the sea.

Why is his dolphin acting so strangely? Something must be wrong. It is the year 2013, and Robby lives in an Underwater Research Station with his scientist parents. Most of the time he has fun exploring the ocean caves with the dolphin who is his favorite companion. But something has frightened the dolphin, and Robby sets out to investigate. Then he finds the giant footprints. And he knows that something enormous and unknown is walking here across the bottom of the sea.