Anastasia by Sophie Lark

Anastasia is the princess no one needs: the fourth daughter born to an emperor without a son, and the only royal lacking a magical gift.

Until she collides with a young Cossack rebel, changing both their lives forever.

Damien is taken from everything he knows and raised as a ward of the Romanovs.

Anastasia develops a strange kind of magic shared only by the Black Monk Rasputin.

While her power grows in secret, boosted by forbidden contact with Damien, Anastasia makes a mistake with terrible consequences.

Fate grants her a single chance to set it right... but saving what she lost may cost everything she loves.