It all started with me standing behind the counter of a bookstore and trying to sell another “also fantastic” book to another buyer. The buyer turned out to be corrosive and, poking his fingernail at the half-dressed beauty on the cover, sarcastically asked: “What, in this book there really is... uh... a tied naked girl?” Since I had not read the book, I did not dare to give an affirmative answer. So, when I sat down to write this book, I decided to play it safe - there is a similar girl in it. There are even two of them... just in case.