During the American Civil War, federal prisoners of war escaped by balloon and were ultimately trapped on an island in the South Pacific, inhabited by huge flora and fauna. They must use their intelligence to survive in danger and come up with ways to go home. The sequel to "Underwater 20000 Alliance". Written by Stewart M. Clamen< clamen@cs.cmu.edu >； In 1865, during the siege of Richmond, Virginia, federal soldiers captured Captain Harding, Neb, and Herbert, along with two federal prisoners, Sergeant Pencroft and journalist Spilett, escaped in a balloon during a storm. The uncontrollable wind carried the balloon to a mysterious island in New Zealand's South Pacific. Captain Harding self proclaimed himself as the leader of the team, searching for food; The earlier they find themselves trapped on an island. In addition, they were also attacked by a giant crab, which became their first meal. Along the way, they built a shelter and discovered that there were huge animals living on the island. A few days later, they found two victims on the beach, aristocratic Lady Mary Fairchild and her sexy niece Elena. Later, they found a box containing weapons and instruments such as the sextant, and used a diary of a man left alone on the island by pirates as a refuge. When the pirate ship arrived on the island, they received help from Captain Nemo of the Nautilus, a submarine that reportedly sank off the coast of Mexico eight years ago. Nemo was a famous person who attempted to end the human strike. When the volcano begins to move, they need to leave the island to save their lives. Claudio Carvalho, Rio de Janeiro, Brazil