Twelve thousand copies. In the eleventh chapter of Two Wan Li under the Sea, Captain Nemo took us to visit the Nautilus, a library with 12,000 books, smoked cigars made of seaweed for me, looked at the specimens he collected, and saw the elegant room he prepared for me and the humble room where he lived.

Two Wan Li under the Sea is jules verne's masterpiece. In this work, he developed his fantasy about the ocean to the extreme, showing human confidence in knowing and controlling the ocean, and showing the tenacity and courage of human will.