The Eminence in Shadow, Vol. 4 (light novel)

Résumé
Once upon a time, Rose killed her father and defied her country. But inorder to protect her mother, Queen Leina, she capitulates to Prince Doem. Now,in the Kingdom of Oliana, where the possibility of war hangs thick in the air,rumors fly that Doem and Rose will wed. However, as this would be a major wrenchin certain master plans, this supposed marriage cannot stand!