12 books in series

Mr. & Mrs. North

Mr. & Mrs. North is a 12-book series with 12 primary works first released in 1940 with contributions by Frances Lockridge and Richard Lockridge.

The Norths Meet Murder
A Pinch of Poison
Death on the Aisle
Death on the Aisle: A Mr.  Mrs. North Mystery
Hanged for a Sheep
Murder Within Murder
Dead As a Dinosaur: A Mr. and Mrs. North Mystery
Curtain for a jester
Death has a small voice
A Key to Death: A Mr. and Mrs. North Mystery
Murder is suggested
The judge is reversed
Murder by the Book