Midsomer Priory is vandalised but the reclusive nuns want no help from the police until one of the nuns is found strangled.
Jane decides to sell an Anatolian rug. When it comes up for auction, an old lady at the sale, Harriet Fisher, buys a Berber rug for her dog, but a young Arab who also wanted it promptly steals it from Harriet. Lovejoy is curious and decides to investigate...
Meanwhile, Alexander and Jane are quarrelling badly, and they decide to split up.
Three bodies are found. Beside each lies a copy of the ABC Railway Guide. The police are baffled. But the killer has made one mistake. He has challenged Hercule Poirot to unmask him.moreless