The ceremonial departure of the Empress riding a white unicorn is under threat - the unicorn Afonya is barely breathing! Today everything will be decided: the fate of the wonderful animal, and the fate of Lisa, who will have to make the most difficult decision in her life.... The “Cozy Empire” series, the “Sleuths of the Russian Empire” series, book 6. The main characters of the series are agents of the 7th Branch of Her Majesty’s Personal Office , investigating crimes against animals. The Bloodhounds work cheerfully and naturally, and they live in a wonderful alternative Russia, where levitation trains fly over St. Isaac's Cathedral, a 3D printer prints women's hats, and the Empress's father assembles a crew for a flight to Mars. Instead of magic in this world there are powerful technologies, seasoned with charming traditions of the 19th century. And the rights of the smallest pets are just as important as human rights.