As a fan of the first hour, of both, the Lethbridge-Stewart books AND The Lucy Wilson Mystery, I was intrigued when they announced this crossover. Bringing together the Bledoe Cadets, Lucy AND her grandfather, is as much fun as you might expect, when you know the characters. If you don't, you will learn to love them here. You don't have to read all of the books before this, not even all of the Laughing Gnome run, to understand it, but I'd reccomend it, because they are all very enjoyable. If you want another perspective, I recomend to read the Lucy Wilson Mysteries version of the story, but you wouldn't miss anything from the story if you don't.