I

My system is based on his⁠—though of course I have progressed rather further. He was a funny little man, a great dandy, but wonderfully clever.”

“Like a good detective story myself,” remarked Miss Howard. “Lots of nonsense written, though. Criminal discovered in last chapter. Everyone dumbfounded. Real crime⁠—you’d know at once.”

“There have been a great number of undiscovered crimes,” I argued.

“Don’t mean the police, but the people that are right in it. The family. You couldn’t really hoodwink them. They’d know.”

“Then,” I said, much amused, “you think that if you were mixed up in a crime, say a murder, you’d be able to spot the murderer right off?”

“Of course I should. Mightn’t be able to prove it to a pack of lawyers. But I’m certain I’d know. I’d feel it in my fingertips if he came near me.”

“It might be a ‘she,’ ” I suggested.

“Might. But murder’s a violent crime. Associate it more with a man.”

“Not in a case of poisoning.” Mrs. Cavendish’s clear voice startled me. “ Dr. Bauerstein was saying yesterday that, owing to the general ignorance of the more uncommon poisons among the medical profession, there were probably countless cases of poisoning quite unsuspected.”

“Why, Mary, what a gruesome conversation!” cried Mrs. Inglethorp. “It makes me feel as if a goose were walking over my grave. Oh, there’s Cynthia!”

A young girl in V.A.D. uniform ran lightly across the lawn.

“Why, Cynthia, you are late today. This is Mr. Hastings⁠—Miss Murdoch.”