The champion of the seven seas: The fall of a kingdom

Mortes terror is a prince in the terror dynasty. He plans to work as a knight until his father passes away which could be while. He's in his father and mothers throne room when they hear yelling outside that soon comes to a halt. There's a loud knock at the door making one of the guards open it to see what all the noise is. Beyond it is a man, a man who clearly had bad intent. The guards could sense it and moved to protect the king and queen. The man walked down the hall moving directly. The guards raise their swords knowing what is going to happen when all of the sudden, he disappears. The guards stay around the king and queen and plan to move them out of the room but just as they begin doing so...The queen falls to the floor. They check for a pulse or any sign of life and find nothing. Within minutes the queen is dead. The guards quickly move the king as far away from the castle but, Mortes terror stays behind with his mothers body. He rolls over his mothers corpse and sees a knife lodged into the back of her skull. Shocked, Mortes stumbles back and tries to run away when the man from before appears in front of him. "tell me where they took your father, prince!" the man's voice, sounding quiet and mysterious in Mortes' ears. "i-i don't know! he has castles all over the world they could be moving him to any of them!" Then the man throws Mortes down and looks at him with fury in his eyes "You are going to be a useless king." Mortes watches as the man walks away yet he musters the courage to ask him one question, "What is your name? cause so help me gods i will put more stab wounds in you then you put in my mother!" Then the man responds to him, his tone seeming evil and dark. "Seeing as that day will never come i will give you my name. Tacet Sicarius, One of the most skilled assassins on the battlefield." Tacet disappears leaving Mortes sitting next to his mothers dead body wondering "he's only ONE of the strongest?"