Colin Watson’s 6-part serial where Inspector Purbright investigates dark deeds and anonymous letters in the world of small-time animal charities in the quiet and respectable market town of Flaxborough.

My Dear Friend … I am in great danger. The person whose loyal and faithful companion I have been … intends to have me done away with … When this unsigned letter is sent to three people in town none of them take it seriously. However, as with most events Inspector Purbright and the residents of Flaxborough realise that hindsight is a wonderful thing, especially when a woman is found dead in suspicious circumstances.