Empire of Angels

What is the work of an angel? Is it possible to influence human choice? Is it possible to make a person happy? Is there a limit to the path of knowledge?
In the second novel of the "Angels" cycle, one of the most popular modern French writers with a world name describes the world of angels in an exciting and light-humored way, interspersing plot vicissitudes with esoteric knowledge and scientific data. Here, Mikael Penson, familiar to readers from the first novel of the cycle - "Thanatonauts", will have to experience the role of a guardian angel, which, however, will not prevent him from continuing the work of a researcher of spiritual worlds, which he began in his earthly life.