Hamelin is overflowing with tourists enjoying the Highland Festival—and most of them are donning tartans from Peggy Winn’s ScotShop. There’s no shortage of interesting characters visiting her shop, but Big Willie, a longtime champion of the Scottish-themed games, is one of the most delightful. Still, not everyone is happy to have him in town, so when he misses the first event of the weekend, Peggy senses something is awry.

After Willie is discovered dead in his hotel room, the victim of a bagpipe-related crime, Peggy decides its up to her and her fourteenth-century ghostly companion, Dirk, to suss out a murderer—because another death would really blow…