This book is one of Jules Verne's masterpieces. It describes the story of French naturalist Professor Aronas traveling deep under the sea. The author uses a first-person narrative technique to describe his various experiences traveling under the sea with Captain Nemo. During the adventurous voyage, they hunted under the sea together, visited the undersea forest, visited the ruins of Atlantis under the sea, salvaged the treasures of the Spanish shipwreck, witnessed the funeral of the Coral Kingdom, fought with giant spiders, sharks, and octopuses, and repelled the siege of the indigenous people... With the excellent structure of the submarine and the superhuman wisdom of the captain, all kinds of dangers were resolved, and finally the thrilling undersea journey was completed.