This book is about a professor who gose on an adventure with his trusty crew and track down this giant beast that roams in the deep oceans. No one had ever been able to catch it but it is not impossible,. During the search, the proffesor gets thrown overboard along with his assistant and his most powerful sailor, together, they help eachother make it through the cold waters until a submarine finds them. Although the captain saves them from the freezing sea, he keeps them as his prisoners. They sail the entire world in the submarine and even be the first people to reach the South Pole alive. The Prisoners plan to escape during a whirlpool when the submarine dives deep into the water forever but they had an amazing time 20,000 leagues under the sea. Find out more about this book.