If it hadn't been for the dog, Jenny Patterson would never have overheard that bizarre snatch of conversation on the grouse moor. A year ago Jenny didn't know a grouse from a Rhode Island Rooster. Now she's up to her eyebrows in mud because a day's labour on the shoot will earn her a precious 20 pounds and an even more precious few hours of contact with humanity. If she hadn't gone on the shoot she wouldn't have remembered that conversation about security consultants when she's told that the collapse of her husband's business might have been due to underhand dealing rather than bad debts and bad luck. And if she hadn't remembered the conversation she would never have kicked over the ant's nest of trouble.