About the book: 2018 / Our time, our world. The surface of the Earth has been 100% explored, but humanity still does not know what secrets it hides inside itself. A whirlpool pulls in the boat of the inveterate bachelor Oleg Krasnov. He ends up underground. He only has a guitar with him in a shockproof and waterproof case. A giant girl saves him from imminent death. In her hands he becomes a toy. What events will Oleg witness? How will the underworld change him? And what role does music have in all this??