It's the height of summer. As the heat shimmers on the streets and ice cream melts onto sticky fingers, tempers begin to rise and old grudges surface.From Cornish beaches to the French Riviera, it's not just a holiday that's on people's minds ... it's murder. In these ten classic stories from writers such as Arthur Conan Doyle, Cyril Hare and Gladys Mitchell, you'll find mayhem and mysteries aplenty.So grab the suncream and head down to the beach - if you dare.