Finding the ornament would be quite a feather in my fedora, but where to locate it? That was for me to find out — to turn question marks in mysteries into exclamation points in solutions…
Why, it’s The Twelve Suspects of Christmas by Ana T. Drew. It’s the Die Hard of cozy Christmas mysteries - an engaging mystery full of intrigue and spies that happens to take place at Christmas rather than a Christmas book that happens to have a mystery. Well, minus all the shooting. There’s really only a couple of knives and a jar of cinnamon.