One to Jump — George Douglas

When Detective Sergeant Dick Garrett spends his leave in Wellesbourne Green to persuade ex-crook Molly Bilton to marry him, he is faced with a mystery. Ace criminal Flint, previously known to Molly, is found dead with no clues to the killer. Then Ben Thompson's daughter, Elsie, is assaulted and kidnapped. Garrett begins to suspect that one of the local police could be involved, working hand in glove with the dead man...