Where are the treasures captured by the abyss? How to get to them? Who tried to penetrate Neptune's domain and when? Who succeeded? What could people get from the bottom of the sea? The brochure talks about this vividly and interestingly. The text of the book was translated from the original language using an artificial intelligence program. For the most part, the translation of the text is of very high quality, but in some cases, due to the imperfection of the technology, there may be incorrect phrase translations in the text, as well as single words and expressions may not be translated.