You must excuse my coming to Battersea, as I understand that your flat is subjected to a most inconvenient surveillance.

May I call at the office of your paper, at say eleven o'clock tomorrow ?" "Yes!" Wrayson answered.

"You know where it is ?" "Certainly! I shall be there.

A Mr.Bentham will ask for you.
Good night!" Wrayson's unknown friend had rung off.

He replaced the receiver and turned to the Colonel.
"Do you know who that was ?" he asked eagerly.
"I can guess," the Colonel answered.
"To-morrow, at eleven o'clock," Wrayson declared, "I shall know who killed Morris Barnes.".