<Tr> <Td_colspan="8"> A children's magic show goes horribly wrong when one of the performers dies during a trick . Barnaby and Jones discover that the victim was poisoned with a rare toxin extracted from Ecuadorean poison frogs - so the hunt is on for a particularly ruthless and imaginative killer . The detectives soon learn that a feud is raging between local occult practitioner Ernest Balliol and famous writer Aloysius Wilmington . While some of the villagers - such as Ernest's daughter Isolde - believe that powerful magical forces are at play, others think the reasons for the bloodshed may have their roots in the distant past . Barnaby and Jones soon find themselves delving into the occult, magic, and ancients books of power, to determine what happened, and soon sense a mixture of both might be the motive for the murder, when a book shop owner is killed with shattered glass, laced in the same poison . </Td> </Tr> <Tr> <Th> 65 </Th> <Td> 6 </Td> <Td> "Days of Misrule" </Td> <Td> Renny Rye </Td> <Td> Elizabeth - Anne Wheal </Td> <Td> 24 December 2008 (2008 - 12 - 24) </Td> <Td> February / March 2008 </Td> <Td> 5.89 </Td> </Tr> <Tr> <Td_colspan="8"> Barnaby and Jones are forced to take part in a team building exercise and Tom has plenty of problems dealing with the young, new, acting Chief Superintendent, John Cotton (Nick Fletcher). Following an explosion in a truck that had been stored in a truck depot, a body is soon discovered in a nearby lake, which turns out to be Alec Grainger, who had been seen arguing with James Parkes (Joseph Millson), the son of Colonel Matt Parkes (Tim Pigott - Smith). James appears to be involved in shady business deals and is blamed by his grandmother Caroline Halsey (Judy Parfitt)--and others--for the suicide of a woman he got pregnant two years before . Barnaby and Jones find themselves delving into a mixture of fraud, smuggling, and lies, trying to piece together the truth . </Td> </Tr> <Tr> <Th> 66 </Th> <Td> 7 </Td> <Td> "Talking to the Dead" </Td> <Td> Sarah Hellings </Td> <Td> David Lawrence </Td> <Td> 5 May 2010 (2010 - 05 - 05) </Td> <Td> March / April 2008 </Td> <Td> 5.92 </Td> </Tr>

When is the next season of midsomer murders