Thirteen-year-old Grassina vies with her older sister, Chartreuse, to see who will inherit the family's talent for magic and become the Green Witch, while each ponders which prince will be at her side during her "happily ever after.".

Vika Andreyeva can summon the snow and turn ash into gold. Nikolai Karimov can see through walls and conjure bridges out of thin air. They are the only enchanters in Russia, and when the Ottoman Empire and the Kazakhs threaten to attack, the tsar wants a powerful enchanter by his side, and as an advisor for the prince, Pasha. He initiates the Crown's Game, a duel of magical skill, and the winner will become his Imperial Enchanter; the loser will die....