Incomplete revenge, paperback/jacqueline winspear

The 5th mystery in the Maisie Dobbs series, set in the 1930s in the Kent Weald.

Maisie is hired to uncover a series of unsolved crimes in the village of Heronsdene; but the locals dont take kindly to outsiders and the legacy of a wartime Zepplin raid seems to point to a long buried secret.