This is the fourth book in the MONKEEWRENCH series and it's a good one. I liked reading it in the heat of the summer since it takes place in the dead of winter. Dead being a key word.
There's a snowman making festival to get people out to celebrate the first really good snow in a dry winter in Minneapolis and it turns out that two of the snowmen are really men under the snow. Two dead men. The detectives Magozzi and Rolseth are called out since they are first on the scene by participating in the contest. The Monkeewrench team is peripheraly involved. There is another 'snowman' in a little town north of the cities and there is the thought that a serial killer is on the loose.
It's a very good story.