PJ Quinn is the pen name for mother and daughter team, Pauline Kirk and Jo Summers. Pauline is a novelist and poet. Jo is a lawyer who writes text-books for the legal press. Jo challenged her mother to write a crime novel and, somehow, ended up writing it with her. The result is a series of detective novels featuring DI Ambrose and Chalk Heath, set in the 1950s, a period of great change that seems like an era ago.