Paul Harley stared curiously at the speaker. “Do I understand you to suspect that someone is desirous of harming you?” he enquired.

Colonel Menendez slowly nodded his head.

“Such is my meaning,” he replied.

“You refer to bodily harm?”

“But yes, emphatically.”

“Hm,” said Harley; and taking out a tin of tobacco from a cabinet beside him he began in leisurely manner to load a briar. “No doubt you have good reasons for this suspicion?”

“If I had not good reasons, Mr. Harley, nothing could have induced me to trouble you. Yet, even now that I have compelled myself to come here, I find it difficult, almost impossible, to explain those reasons to you.”

An expression of embarrassment appeared upon the brown face, and now Colonel Menendez paused and was plainly at a loss for words with which to continue.

Harley replaced the tin in the cupboard and struck a match. Lighting his pipe he nodded good humouredly as if to say, “I quite understand.” As a matter of fact, he probably thought, as I did, that this was a familiar case of a man of possibly blameless life who had become subject to that delusion which leads people to believe themselves threatened by mysterious and unnameable danger.

Our visitor inhaled deeply.