Murder is Easy
"No, no, my dear boy, that's where you wrong. It's very easy to kill-so long as anyone suspects you. And you see, the person in question is just the last person any one would suspect!"
Returning to England after many years, Luke Fitzwilliam mate with Miss Pinkerton of Wychwood-under-Ashe. She was going to Scotland Yard because there were wholesale murders in her village, and she suspected a definite person to be responsible for those murders.
Miss Pinkerton was killed in the way to Scotland Yard.
Luke Fitzwilliam realized that the suspicion of Miss Pinkerton was right, otherwise she would not get killed.
Luke went to Wychwood-under-Ashe to unmask the murderer.
He found that murder was, after all, really easy !!!