The second delightful mystery adventure in the Christie & Company series takes place at a bed-and-breakfast on the coast of Maine.Boarding school classmates Christie, Maggie and Vicky are spending their summer vacation at Maine's Blue Heron Inn, owned by Maggie's parents, when strange things start happening -- all designed to frighten the guests. The girls suspect sabotage and Christie & Company get on the case to catch the culprit before the inn is put out of business.