Ekaterina (Heirs of Anton Series #1)

Upon receiving an unusual package in the mail, Ekaterina "Kat" Moore boards a plane to Russia, her ancestral home, to seek some answers. What she finds leads her on a perilous journey through time as Kat must flee the Russian underground. To further complicate matters, she finds herself falling in love with FSB Captain Vadeem Spasonov, a man trying to forget the nightmares of his own past. When Kat's secrets lead to the answers Vadeem needs, the treasures they find unleash an avalanche of God's design.