The life of a young honorary prisoner in an imperial school is difficult! Many noble dignitaries show interest in the fate of the hostage, the son of the ruler of a mountainous country. His abilities are too unusual, which more than once rescued the heir in the most hopeless situations. Danger threatens at every step - after all, the blood enemies of the father did not retreat. Could not get to the heir in the mountains, try in the Empire... Who will save Alter this time? Loyal servants? New friends? Or the memory and skills of a stranger from another world who lurked in the mind of a young highlander?