Halley's Comet night at Winterscombe in 1910 ends with a violent death which throws a giant shadow over three generations of the Cavendish dynasty.At the centre of events is the beautiful and dangerous Constance, who casts a spell - which may be a curse - on all the sons of the family.Following the destruction of two World Wars - and the passions, deceits and hatreds of the intervening peace - it ...