The third book in the “Ordinary Doctor” series. If you are a talented surgeon, possessor of knowledge from the future, then treat people, advance medical science and do not go where predators rule. They'll devour you, sir. But Major of the Medical Service of the Russian Army Igor Ivanov, in the new world - Prince Meshchersky, decided that the officer’s honor did not allow him to stand aside. Got in. Read in the novel what came of it.