The Black Dragon Officer and in charge of security and of overseeing the Dragon Fighters and Knights Tetheus does a commendable job to protect the Dragon Castle from harm. Brother to Shydeman and Shyrendora meaning that he is a demon he was rescued by Lykouleon and vowed to serve him. Dark mysterious and incredibly strong not much is known about his past or in reality his present. Tetheus isnt as harsh as he sometimes comes off however and while he can be very strict is also protective to a fault loyal and with the uncanny ability to see far more than he reveals. Source: Wikipedia