King John’s possible possession or replacement by supernatural forces leading to erratic and cruel behavior, driving Ranulf and others to suspect demonic influence or impersonation

King John’s trial by combat is moments from its bloody end when Estram raises his sword to execute Hugh. The Doctor seizes the pause to invoke the rules of combat …

In the torchlit guest chamber Ranulf storms in accusing an unseen force of destroying King John’s mind only to discover the Doctor and Tegan, newcomers who share his suspicion. The …