Lifeline

When a chilling discovery is made in one of the manor's greenhouses, the Frog End villagers rely on the Colonel to reluctantly solve another baffling mystery.

Following the untimely death of her mother, Ursula Swynford, Ruth Harvey has taken over the manor in Frog End, where she runs a successful plant-selling business and provides gardening therapy for an increasing number of her husband Dr Tom Harvey's troubled patients: embittered Lawrence Deacon, lonely Joyce Reed, widowed Tanya Carber...