M-I-D: S1 EP 43 - The fallen tower

Tanin, Charles, Wilavor, and Cas are summoned by the distressed king, who expresses his concern over the lack of communication from the northern tower. He instructs them to swiftly investigate the matter. Upon reaching the tower, they stumble upon the lifeless body of Charles's beloved rabbit, and to their astonishment, they find that the tower has been infiltrated and taken over by an unknown individual.