The Adventure of the Copper Beeches

Sir Arthur Ignatius Conan Doyle KGStJ, DL (22 May 1859 – 7 July 1930) was a British physician and writer who is most noted for his fictional stories about the detective Sherlock Holmes, which are generally considered milestones in the field of crime fiction. Excerpt-"'And my duties, sir? I should be glad to know what they would be.'
"'One child--one dear little romper just six years old. Oh, if you could see him killing cockroaches with a slipper! Smack! smack! smack! Three gone before you could wink!' He leaned back in his chair and laughed his eyes into his head again.
"I was a little startled at the nature of the child's amusement, but the father's laughter made me think that perhaps he was joking.
"'My sole duties, then,' I asked, 'are to take charge of a single child?'
"'No, no, not the sole, not the sole, my dear young lady,' he cried. 'Your duty would be, as I am sure your good sense would suggest, to obey any little commands my wife might give, provided always that they were such commands as a lady might with propriety obey. You see no difficulty, heh?'