He would pay me a thousand pounds for it." "May Allah change his face! He only offered me five hundred!" "You have seen him already, then ?" Grim asked.

"I don't believe you! When did you see him ?" "On the way up here.

He stopped my cab to speak to me at the foot of the hill." I began to see the drift of Grim's purpose.

He had established the fact that the French secret agent was already on the track of the letter, and that in turn explained why he had not seized Yussuf Dakmar and put him in jail.

It was better to use the man, as the sequel proved.