57 books • 5 series
Book #1: The Norths Meet Murder
Book #2: Murder Out of Turn
Book #3: A Pinch of Poison
Book #4: Death on the Aisle
Book #5: Hanged for a Sheep
Book #1: The Faceless Adversary
Book #2: Murder and Blueberry Pie
Book #3: The Drill Is Death
Book #4: Murder for Art's Sake
Book #5: Die Laughing