The first volume of the Collected Works includes the first novel of the “Albigensian Mysteries” series - “The Casket of Marie de Medici”, an exciting detective story with elements of mysticism, in which the author, describing the theft of a mysterious casket, takes the reader from the 20th century into the depths of history.

When the crusaders destroyed Montsegur, a stronghold of the Cathars, some of the treasures were hidden by the surviving servants of the heretical church. And encrypt the path to them. A legend has been passed down from generation to generation that whoever solves the mystery of the casket of Marie de Medici will find the Templar treasures hidden by the survivors. And here is the 70s of the 20th century. The casket ends up in the USSR and the treasure hunt begins.