16 books
Harry Isn't Sure It's Murder
Harry Excuses a Murder
Harry is Spooked by Murder
Harry Digs Murder
Harry Hooks a Murder
Harry Gets Away with Murder
Harry Thinks Dancing is Murder
Harry Resorts to Murder
Harry Thaws an Icy Murder
Harry Gets Wind of Murder
Harry Expects A Murder
Harry Finds a Good Murder
Deadly Ploy
Queen's Trap
Queen of Murder
Hunted Maidens