She was a lucky woman who had established a happy knack of writing what quite a lot of people wanted to read. - Agatha Christie

Iris was too languid and too used to Mrs. Drake’s discursive style to inquire why the mention of Dr. Gaskell should have reminded her aunt of the local grocer, though had she done so, she would have received the immediate response: “Because the grocer’s name is Cranford, my dear.” Aunt Lucilla’s reasoning was always crystal clear to herself.

"Mr. Satterthwaite looked cheered.

Suddenly an idea struck him. His jaw fell.

"My goodness," he cried, "I've only just realized it! That rascal, with his poisoned cocktail! Anyone might have drunk it! It might have been me!"

"There is an even more terrible possibility that you have not considered," said Poirot.

"Eh?"

"It might have been me," said Hercule Poirot."

And if you cast down an idol, there's nothing left.