A change of eras is coming, the nineteenth century from the Deposition of Kafaeris is coming to an end, the twentieth century is already on the threshold. Starkrar, like the entire Meskian Empire, is preparing to celebrate the bright holiday of Yule in order to see off the old century and welcome the new. But not only fog and frost walk through the snow-covered streets of the night capital. Something inhumane lurks in the dirty alleys of the slums, waiting for its victims. Bloody massacres horrify the subjects of the empire, inflaming interspecies hatred, high-ranking officials die mysterious deaths in their own mansions, secret service agents disappear without a trace, and out of nowhere terrorists commit one horrific terrorist attack after another. Someone decided to shake the throne under the sacred person of the Emperor. Someone longs for the fall of Meskiah. By the will of the monarch, Brianne l'Moria - half-breed tencrys, master of dark deeds and the first detective of the empire - takes up the investigation. From now on, he must either reveal the plot of a nameless enemy, or die.