The Heron's Cry

North Devon is enjoying a rare hot summer with tourists flocking to its coast-line. Detective Matthew Venn is called out to a rural crime scene at the home of a group of artists. What he finds is an elaborately staged murder – Dr Nigel Yeo has been fatally stabbed. His daughter, Eve, is a glassblower, and the murder weapon is a shard of one of her broken vases.