Muscovy 1460. After years of combat, veteran mercenary Connor Rainey heads into the Land of the Rus in search of a peaceful new home. What he finds in anything but peaceful.
In the dark world of early Russia, Ivan III is surrounded by enemies, both outside his lands and in his own court. When Rainey saves Ivan from an assassination attempt perpetrated by one of court boyars, he is drawn into the dangerous political world of the Muscovy court. Rewarded with the traitorous boyar's lands, Rainey must deal with the boyar's fiery daughter, Ludmilla, who is unwilling to surrender her birthright to anyone.
Spanning 25 years, The Great Celt weaves a story of love, intrigue and power before the formation of Russia as a nation and the transformation of the Grand Prince of Muscovy to Tsar of All the Russias.