Agnes's world is desperately similar to ours at the end of the 19th century, but it is also strikingly different: it seems to be the same England, but demon cabmen are cutting through the streets of Lower London, scaring ordinary people, and in the glass gardens of Upper London soaring in the sky, great politics is being carried out …Agnes Ballyrano is recognized by strangers. She has a very high magical resonance coefficient. And there is even a personal demon with the funny name “Melchior”! She is a young girl, a waitress at the Hearth pub, who has serious plans for the future - to enter the best University of Magical Arts on the mainland. Everything would be fine, but Agnessa has memory problems and an incredible ability to get into trouble... Who will help her get out of them alive and unharmed? And what to do when the old world burns to the ground?