“My chief reason is purely technical,” he said.
“But the police - do they think it was murder?”
“They think it very probable,” said Giles.
She was silent for a moment, still very white, her eyes fixed on the glowing end of her cigarette. She raised them presently, and said: “You mentioned something about Kenneth. But, whatever happened no one can suspect him of having had anything to do with it. He was at the Albert Hall last night with Leslie Rivers.”
“He was at the Albert Hall, I know,” agreed Giles. “But the Albert Hall is not five minutes' walk from Roger's fiat, Miss Williams. Nor are the police at all satisfied that he didn't leave the dance for a time during the course of the evening. In fact, though he won't admit it, I am pretty sure that not only did he leave the dance, but he also called on Roger.”
“I'm sure he didn't!” she said quickly. “Why should he? There could be no reason for doing such a stupid thing.”
He hesitated. “I think there was a reason,” he answered. “May I speak quite frankly?”
“Oh, please do!”
“Well, Miss Williams, Kenneth has — as you probably know - a very jealous temperament. Do you remember that on the evening when we all dined with Roger he invited you to dine with him again on the night of the ball?”
She said rather coldly: “Yes, certainly I remember that, but it was merely a joke.”