To Die But Once - Maisie Dobbs

Spring 1940. Maisie Dobbs is asked to investigate the disappearance of a local lad, a craftsman working on a government contract. As Maisie's inquiry reveals a possible link to the London underworld, the country braces for enemy invasion. And another mother is worried about a missing son - but this time the boy in question is one beloved by Maisie.