 Later that day, the White General Mikhail Sobolev, nicknamed the Russian Achilles and an old friend of Fandorin's, is found dead in the same hotel.Officially, he died of a heart attack, but Fandorin becomes suspicious when he talks with the body guards of the general.Fandorin had befriended these cossacks when he rooted out a Turkish spy during the siege of Plevna (see "The Turkish Gambit").