Giles took out his cigarette-case and opened it. “It isn't for me to question your story, Mesurier. I can only say that if it's true I'm sorry.”

“Sorry?” Rudolph ejaculated. “I don't understand you!”

Giles lit a cigarette and pitched the dead match into the grate. “For your sake, very. You had an excellent alibi there, Mesurier.”

“Alibi? Where?”

“In the car,” replied Giles. “For if you had been driving your car back to London from Hanborough that night I don't think you could very well have been the murderer.”

Chapter Ten

The effect of this calm pronouncement was slightly ludicrous. Rudolph Mesurier blinked at him in a bewildered manner and said: “Then - then I might just as well have admitted I was out? But I don't understand what you're driving at!”

“It is always better to speak the truth,” said Kenneth smugly. “Witness my own masterly conduct of this highly intricate case.”

“I daresay,” responded his sister. “But did you speak the truth?”

“That, my love,” said Kenneth, “is for the police to find out.”