“That’s right, George,” he drawled. “March him around here.”

Raging inwardly, I was conducted to a spot in the shadows, where the unseen George (whom I suspected of being the impeccable Deaves) gagged and bound me securely.

Ryland spoke again in a tone which I had difficulty in recognizing, so cold and menacing was it.

“This is going to be the end of you two. You’ve got in the way of the Big Four once too often. Ever heard of landslides? There was one about here two years ago. There’s going to be another tonight. I’ve fixed that good and square. Say, that friend of yours doesn’t keep his dates very punctually.”

A wave of horror swept over me. Poirot! In another minute he would walk straight into the trap. And I was powerless to warn him. I could only pray that he had elected to leave the matter in my hands, and had remained in London. Surely, if he had been coming, he would have been here by now.