Chapter 1: Dr Sheppard at the Breakfast Table

9. I was sent for at eight o'clock on the morning of Friday the 17th.
I opened the front door with my latchkey, and purposely delayed a few moments in the hall, hanging up my hat and the light overcoat that I had deemed a wise precaution against the chill of an early autumn morning.

10. The motto of the mongoose family, so Mr. Kipling tells us, is: 'Go and find out.' If Caroline ever adopts a crest, I should certainly suggest a mongoose rampant.
I have got into the habit of continually withholding all information possible from my sister. She usually finds out just the same, but I have the moral satisfaction of knowing that I am in no way to blame.

11. … lots of women buy their clothes in Paris, and have not, on that account, necessarily poisoned their husbands.
I walked into the dining-room, gave Caroline the accustomed peck on the cheek, and sat down  to eggs and bacon.

13. Sarcasm is wasted on Caroline. She takes it seriously and answers accordingly.
… when you have a secret belief of your own which you do not wish to acknowledge, the voicing of it by someone else will rouse you to a fury of denial.

14. She was a mass of nerves. An overmastering impulse drove her on to get rid of her husband because she was the sort of person who simply can't endure suffering of any kind.
Now that she has gone where (presumably) Paris frocks can no longer be worn, Caroline is prepared to indulge in the softer emotions of pity and comprehension.

15. She will go round the village airing her views, and everyone will think that she is doing so on medical data supplied by me.
Ten to one she's left a letter confessing everything.'
'So you did inquire about that, did you? I believe, James, that in your heart of hearts, you think very much as I do.

Paraphrase these sentences in your own words, and explain their relevance in the context of the novel.