Mark and Rich and their friend, To-mo, search for a chest of gold and the city of Da-Vee, both of which were buried at the bottom of the sea. Their ship is the Sea Jet.

Published
1964
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Author

Henry A. Bamman

Henry A. Bamman is an American author. His titles focus on adventure and science fiction. He has co-authored many books with Helen Huus and Robert J. Whitehead. In 1978, he was invited to speak at Truman State University as a Baldwin Lecturer. He spoke on "Crisis and change".