"I am suggesting that you were in the pavilion on Sunday morning after twelve o'clock when Gudgeon brought the glasses out. That you stood by that table watching someone, or waiting for someone, and unconsciously took out a pencil and drew Ygdrasil without being fully aware of what you were doing."

"I was not in the pavilion on Sunday morning. I sat out on the terrace for a while, then I got the gardening basket and went up to the dahlia border and cut off heads and tied up some of the Michaelmas daisies that were untidy. Then, just on one o'clock, I went along to the pool. I've been through it all with Inspector Grange. I never came near the pool until one o'clock, just after John had been shot."

"That," said Hercule Poirot, "is your story. But Ygdrasil, Mademoiselle, testifies against you."

"I was in the pavilion and I shot John, that's what you mean?"

"You were there and you shot Dr. Christow, or you were there and you saw who shot Dr. Christow-or someone else was there who knew about Ygdrasil and deliberately drew it on the table to put suspicion on you."

Henrietta got up. She turned on him with her chin lifted.

"You still think that I shot John Christow.

You think that you can prove I shot him.

Well, I will tell you this. You will never prove it. Never!"

"You think that you are cleverer than I am?"

"You will never prove it," said Henrietta, and turning, she walked away down the winding path that led to the swimming pool.