I recommend "The Mysterious Seas", a fantasy and mysterious fantasy novel written by the author, Foxtail. The story takes place in a dark and mysterious underground sea and mysterious island. Humans are not the main characters here, but madness and death. Riding a steamboat and venturing into the sea to find the glory of mankind in the past. The story is full of mystery and fantasy elements, not to be missed. I hope you like this fairy's recommendation. Muah ~😗