"Тайна трёх государей" (комплект из 2-х книг)

In form, this novel may resemble the writings of Dan Brown, in content - books by Umberto Eco. For such a rare and fascinating combination of many genres, critics came up with the name "infotainment" - entertaining information and tuning the reader's brains.

The action of the novel begins on March 14, International Pi Day. A young historian, a researcher at one of the museums in St. Petersburg, is conducting a seemingly ordinary study. He is interested in the strange similarities in the biographies and the main milestones of the reign of three Russian sovereigns - Ivan the Fourth the Terrible, Peter the Great and Paul. The historian tells a retired military man who works in the protection of the museum about his guesses - and from that moment on, their fates are inextricably linked. Without knowing it, the historian disturbed the mystery that has been hunted for more than two and a half thousand years around the world, and it will be solved in St. Petersburg.
Heroes are forced not only to crack their brains, but also to hide: powerful secret services, adherents of ancient knightly orders and leaders of a secret world government are on their trail. You can't trust anyone, and in a kaleidoscope of bright adventures, everyone can be the last. The plot is replete with historical paradoxes, sophisticated mysteries and unexpected twists, keeping the reader's attention strained from the first to the last page.