In the past, it is revealed that Mordred led a rebellion against King Arthur due to Arthur's refusal to recognize her as her child or a worthy heir to the throne, resulting in Mordred's death at Arthur's hands. In the present, Sisigou and Mordred arrive in the town of Sighisoara to investigate a string of serial murders targeting mages. Inspecting the bodies, Sisigou notes that the victims' hearts are missing, suggesting that the murderer is a Servant who is harvesting the mages' life force...