Back from Japan, Fandorin finds himself in the middle of a conspiracy to overthrow the Russian regime. Certainly, for Fandorin death of his friend Achilles Sobolev's too suspicious. Still no sign of violence, no clues and especially no mobile! It is by plunging the streets disreputable Russian Fandorin that will gradually resolve the case. But he will face a ghost who years earlier had destroyed his life ... Boris Akunin has decided to cut his novel into two very distinct parts. The story appears to us in two different ways: the first is Fandorin. It reveals the various mysteries that make up the survey, characters, intrigues. Then a lot more strange angle. We follow the slow genesis of a formidable and highly effective killer ...