Rent Midsomer Murders: Series 11: The Magician's Nephew (2008)

Jean Wildacre, magician Aloysius Wilmington's assistant, is killed while performing a trick in a children's magic show. As Barnaby and Jones investigate they uncover a world of secret ceremonies and magic circles, namely the Temple of Thoth. When local bookshop owner, Hugo Cartwright, is murdered will Barnaby discover the connection before more victims fall foul of the killer?