In the seventh and final installment of the popular 43 Old Cemetery Road series, twelve-year-old Seymour Hope has inherited a castle in Loch Ness, Scotland. It could be the perfect summer vacation spot for Seymour and his parents, Olive C. Spence and Ignatius B. Grumply. But Iggy wants nothing to do with the castle. Why? Because it was owned by his uncle Ian, a world-famous psychiatrist and the worlds worst punster. So Iggy stays home to write, and Seymour and Olive set off for Scotlandeach with a secret.