David Durham

A deadly plague spreads through Camelot. When it seems that sorcery can be the only possible explanation, Merlin and Gaius race to find a cure, while Gwen is arrested and sentenced to death for practising witchcraft.

When Gwen suffers tragedy at Uther's hand, Morgana becomes hell-bent on revenge, in the penultimate episode of the magical family drama. Against his better judgement, Gwen's father, Tom, agrees to help a renegade sorcerer, Tauren, turn lead into gold using a magical stone. Halfway through the act, a voice rings out – they're both under arrest. Several guards appear out of the shadows, led by Arthur. Tom goes quietly but Tauren uses his magical powers to escape. Morgana and Arthur plead mercy for Tom but Uther is adamant – he will face trial and, if he is found guilty, there can be only one sentence. Morgana tells Uther that if he kills Gwen's father, she will never forgive him. Morgana goes looking for Gwen and, amongst the debris of the chase in the forge, she finds the magical stone which the sorcerer must have dropped during his escape. Morgana places the stone in her pocket and heads off. Merlin can sense the stone but is unsure what the powerful feeling of magic means. Morgana realises that Tom's trial is just a formality – Uther has made up his mind and will find him guilty no matter what. She therefore decides to take matters into her own hands and steals the keys to Tom's cell – sneaking down into the dungeons and slipping them to a stunned Tom. Later that night, Tom makes a bid for freedom. But, when the guards discover his cell is empty, Uther orders that he be found – and executed on sight. Despite his best attempts, Tom is caught and struck down on the spot – Gwen is devastated. Morgana is furious and confronts Uther, but her actions land her in serious trouble when she is sent to prison by the angry King. Will Morgana's rage push her too far and endanger the lives of those closest to her?