Though Professor Hilary Tamar expressed misgivings on hearing that barrister Selena has allowed - even helped - her reality-challenged friend Julia Larwood to take an Art Lovers' trip to Venice, even they didn't expect a murder to occur, and for unlucky Julia to be accused of the crime. Thanks to the transport times for international post, Julia's letters from the pre-murder days on the trip are still arriving. With these romantic tell-all missives as their only source of information, the law team at 62…