Space opera is a conservative genre. Swords and starships, aristocrats and pirates, alien planets and mysterious ancient civilizations - from my point of view, nothing new can be brought to the genre. But if you bring into it the well-forgotten old stuff - namely, an adventure novel “for youth” - then you can get a good bouquet. So, the last Crusade has just died out among the stars. Having united for the duration of the war, the dominions of the Fourth Rome renewed their rivalry. Dominatrix Lady Constance incognito leaves her long-reconquered fief on the ship "Pilgrim", the crew of which is small but very unique. Yesterday's crusader Captain Haru, pilot Miles Christie from the ancient Shedayin people, his young student Richard, who miraculously survived in a destroyed city on the planet Sunagishi, chief mechanic - crippled veteran Walder, navigator Jezekia Bolton and hastily hired flight mechanic Sandro Morita - their journey will not end there at all and not at all what they thought.