This book includes a comprehensive list of 'Who's Who' Ihumans and animals) in the Jemma Spark series of Jill books. There are three short stories by Jemma Spark. The first is 'Jill and the Mystery of the Missing Horse', followed by 'The Engagement Party', which is the tale of Cecilia Talbot's engagement party held at Blainstock Castle. The guests arrive on Thursday evening. They go trekking in the Highlands, sailing and canoeing on the loch. There is a fancy dress party on Saturday night and on the following morning, one of the guests cannot be found. A full-scale search ensues. Jill, Ann Derry and Dinah Dean set their minds to discovering the missing guest and who is responsible for her sinister disappearance. The third short story is narrated by Susan Barrington-Brown, featured in 'Jill and the Prizewinners', and introduces Noel Kettering, Henry Thornton and Christo to the Jill series.