And again the hum of history... This book is a thematic continuation of Gennady Prashkevich’s novel “The Secret Deacon”. First half of the 17th century. First, Russian Cossacks, on the orders of Tsar Alexei Mikhailovich, are looking for a living mammoth in the tundra on Indigirka. In “The Secret of the Polar Prince,” the famous explorer Semyon Dezhnev arranges life on the new Pogych River. And again - little-known events, and again an incredible feeling of immersion in historical time, set out in the book by Gennady Prashkevich. “You are one of the few who now knows how to write real historical novels,” Boris Strugatsky wrote to the author. This is really true, let's not argue... Let's read.