The Magician's Nephew is the fifth episode of the eleventh series of Midsomer Murders and was originally broadcast on 27th July 2008.
Jean Wildacre is killed on stage during a magic show. She was a member of an occult group headed by imperious Ernest Balliol. Balliol and a former colleague in the group Aloysius Wilmington have long been at odds as both are anxious to locate a priceless antique book, believed to be somewhere on Aloysius's premises. Balliol has married again and his daughter Isolde is as fervent as he is in trying to find the book. His gentler son Tristan lives with and cares for his mother, Ernest's mentally fragile first wife Rosemary. Two more deaths follow and each victim was present when one of Balliol's wives was recruited into the group years earlier. Suspicion falls on Ernest and his children and on Simon Wilmington, actually the illegitimate son of Aloysius, though he has been led to believe he is The Magician's Nephew.
- Literary Allusion Title: The Magician's Nephew is one of the novels in The Chronicles of Narnia by C. S. Lewis.
- Not-So-Fake Prop Weapon: The spikes inside an illusionist's 'Cabinet of Death' are coated with a fast-acting poison.
