This book is a science fiction novel, published in 1879. Its author, Jules Verne (1828~1905), was a French writer. He is an important founder of modern science fiction. He first studied law in Paris, but later turned to literature. Friday in a Balloon was the first in his series of novels Fantastic Wanderings in the Known and Unknown Worlds published in 1863, which was a great success, prompting him to continue to write more works on the subject of romantic and dangerous travelogues, and to produce magical and rigorous science fantasy with more skillful brushwork. The series also includes "Journey to the Center of the Earth", "From the Earth to the Moon", "20,000 Leagues Under the Sea", "Around the Earth in 80 Days" and "The Mysterious Island". His novels are widely circulated around the world and become household names. He settled in Amiens in 1872 and was awarded the Legion of Honor in 1892.

There are very few characters in the book, and only four and a half have names and surnames—Farragut, the captain of the destroyer USS Abraham Lincoln, is only a flash in the pan at the beginning of the novel, even if it is half; The interior is just a submarine. But it is just such four and a half people, such a submarine, in nearly a year, traversing the bottom of the sea for 20,000 miles, deducing stories for us and showing pictures one by one; The story is thrilling and fascinating.

The story is not complicated: the Frenchman Aronax, a naturalist, was invited to the United States for a scientific expedition. In fact, there was a monster on the sea, which caused a stir all over the world. After the expedition, the naturalist was about to get dressed up, but when he returned to France, he received an invitation from the U.S. military department, so he changed his course and boarded a destroyer to participate in the activity of "removing the monster from the ocean". After a lot of hard work, the "monster" was not cleared, but the destroyer was severely damaged by the "monster", and the naturalist and his servants, as well as a whalefighter who was specially invited to the destroyer to clear the "monster", became prisoners of the "monster"! It turned out that the "monster" was a submarine that was not yet known to the world, called "Nautilus". Submarines also treat prisoners preferentially; It's just that, in order to keep their secrets, the submarine captain Nemo will never allow them to leave. Aronax and his party had no choice but to follow the submarine around the oceans. Ten months later, the three men finally escaped under extremely treacherous circumstances, and the naturalists were able to reveal the secret of the seabed. "20,000 Leagues Under the Sea" is mainly about their experiences during these ten months.

The journey of 110,000 kilometers is a big scene, and what you have seen along the way can be said to be full of wonders. Who has seen a Haitian forest? Who has ever seen a submarine coal mine? Who has ever seen a priceless pearl "raised" in a shell? Aronax and his friends, who had been taken prisoner, had seen and wandered among them. They fought sharks in the pearl fields of the Indian Ocean, and Rand the whaleblower stabbed a vicious shark; They chased an endangered Ruliang in the Red Sea, and the meat was served to the table that night; They fought an octopus in the Atlantic, and one of the crew members died tragically; These scenes are very thrilling. In addition, the book also describes how sperm whales kill fin whales, and how the submarine Nautilus kills pods of sperm whales, which is a very rare scene.

Aronax was a naturalist, well-versed in the past, sailing underwater in a submarine, which allowed him to enjoy the various flora and fauna of the ocean; He and his servant, Conseil, who was fascinated by taxonomy, gave us a detailed introduction to these sea creatures, the kingdoms, phyla, classes, families, genera and species, in an orderly manner, so that the reader could get acquainted with many sea creatures; Aronax also tells the reader about the wonders of the ocean, one by one, to open the reader's eyes, to know what the Pacific Black Current is, what is the Mexican Warm Current, how hurricanes are formed, and what the Sargasso Sea is like" "Do you know how coral reefs are formed?" Do you know how deep the ocean really is? Do you know how fast seawater travels sound? This kind of knowledge abounds in books.

The Nautilus has also been in distress, stranded on a coral reef, attacked by the indigenous Papuans, and most terrifyingly, trapped in the Antarctic by thick ice, the lack of oxygen in the boat, and the people on the boat are almost impossible to survive. However, with the excellent construction of the submarine and the superhuman wisdom of the captain, all kinds of dangers were resolved, and the 110,000-kilometer undersea journey was finally completed.

In the fascinating story, "20,000 Leagues Under the Sea" warns people to see that science and technology benefit mankind, but also to prevent the use of bad guys and endanger human beings. It puts forward the concept of caring for marine life and condemning indiscriminate hunting and killing. These are still hot topics that the author fervently called for two hundred years ago. The subtlety of the book also lies in the completely natural enlightenment of knowledge, although there is a lot of knowledge about the sea, but there is nothing about it that feels very deliberate or difficult for the reader to read, just what you have seen and heard during a trip, which strengthens the understanding and memory of this knowledge.

The science fantasy depicted in many of the works of Jules Verne, the author of this novel, is realized today. More importantly, the fantasies in his works are bold and novel, and they are so realistic, vivid, and picturesque that they are interesting to read. His works have thrilling plots, lifelike characters, and unexpected endings. All this gives his work a timeless charm.

This science fiction novel seems to be true and false, and it fully embodies the charm of science fiction and makes people admire.