England,1976.Mrs Creasy is missing and The Avenue is alive with whispers. As the summer shimmers endlessly on, ten-year-olds Grace and Tilly decide to take matters into their own hands.And as the cul-de-sac starts giving up its secrets, the amateur detectives will find much more than they imagined…

Meet Linda.Linda lives a nice, normal life, on a nice, normal street with Terry, her perfectly ordinary husband.Linda’s not like everyone else, she keeps herself to herself. But she’s good at solving puzzles and there are times she sees things other people might have overlooked.Because nothing on Cavendish Avenue is quite as it seems. People have started to go missing in the neighbourhood and Linda will soon discover that some secrets can’t stay buried forever…