About the book: 2017 / The end of the nineteenth century, an alternative world. The basis of progress here is not only technology, but also the semi-mystical art called light painting. The powerful Third Department ensures that light painting is not used for evil. However, even he is unable to prevent a series of mysterious brutal murders in one of the European capitals. The investigation is at a dead end - the abilities that the killer possesses seem completely incredible. To unravel the case, a consultant is invited - a master expert, a former participant in a secret government program.