Saint Marko is preparing to celebrate the eighteenth birthday of its beloved king. On the occasion of the celebration, the Alkor embassy, led by Enfer Likar, arrives in the capital of the kingdom. His goal is not only to congratulate young Joan on his birthday, but also to arrange for him to meet with the aldor of the Blue Griffin. However, a tragic incident threatens the negotiations that have begun: another attempt was made on the Count de Lorme, and another knight died instead. In addition, the method of murder clearly indicates that the perpetrator is an Alkor aristocrat, which casts a shadow on the entire mission of the noble enfer. And now Marc de Segur has, in addition to participating in negotiations and ceremonial events, to investigate the assassination attempt on his own person, trying to catch the criminal and at the same time protect the interests of both kingdoms.