Duncan travels to Morgan's capital city of Coroth, where he informs his cousin of Loris' threat. In addition to the ecclesiastical threat, Morgan's duchy is being ravaged by an anti-Deryni fanatic named Warin de Grey, and the neighboring kingdom of Torenth is preparing to launch an invasion of Gwynedd. Fearing that an internal Gwyneddan conflict will weaken the kingdom prior to fighting an external enemy, Morgan and Duncan eventually decide to travel to the city of Dhassa and personally appeal to the Curia of Bishops. However, en route to Dhassa, Morgan is drugged and captured by Warin, who intends to burn the Deryni duke as a heretic. Duncan manages to rescue his cousin, but is forced to reveal his Deryni powers to ensure their escape.