Askold's Grave is a historical park on the steep right bank of the Dnieper River in Kyiv between Mariinsky Park and the Kyiv Pechersk Lavra complex.
The park was created by the Soviets in the mid-1930s in place of an old graveyard around the Church of St. Nicholas, which, as the story goes, marks the place where Prince Askold of Kyiv was buried in the 9th century.
Details of Prince Askold`s death written in the Primary Chronicle («Tale of Bygone Years»).
But one line in the chronicle remained mystery:
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YIGINJSM ZKBWGB SZPLIISBJ UFXSRDCVO KZKEPXVWFC FSESRLRVWLEGIB
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Use Primary Chronicle («Tale of Bygone Years») to search for a key to the mystery.
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Read more in the sources:
1. http://www.newworldencyclopedia.org/entry/Tale_of_Bygone_Years
2. http://weaponews.com/history/31989-the-vikings-and-the-rus-the-tale-of-bygone-years.html
3. https://en.wikipedia.org/wiki/Askold%27s_Grave
4. https://en.wikipedia.org/wiki/Russian_Primary_Chronicle
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You can validate your puzzle solution with certitude.
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