If, during the war against the Poles, during the siege of Smolensk, Tsar Alexei Mikhailovich becomes gravely ill, who will save him from his certain death? The court doctor—an Englishman—knows only one thing: bleeding. And then help arrives: a HEALER FROM THE FUTURE, thrown into the Moscow Tsardom from our time. But cutting the tsar’s appendix out is not the hardest operation that awaits the healer from the 21st century. He will have to convince the Church that his gift and medical skill come from God. He must avoid poisoning that European “murder doctors” are trying to slip to his rival. And he is destined to fight an unequal battle with the plague epidemic that threatens to empty not only Moscow, but all of the Russian Land…