"I am a friend of Mr. Morris Barnes," the voice answered. "May I apologize for calling you up, but the matter is urgent. Can you tell me if Mr. Barnes is in?"
"I am not sure, but I believe he is never in before one or two o'clock," Wrayson answered.
"Will you write down a message and leave it in his letter-box?" the voice asked anxiously. "It is very important or I would not trouble you."
"Very well," Wrayson answered. "What is it?"
"Tell him instantly he returns to leave his flat and go to the Hotel Francis. A friend is waiting there for him, the friend whom he has been expecting!"
"A lady?" Wrayson remarked a little sarcastically.
"No!" the voice answered. "A friend. Will you do this? Will you promise to do it?"
"Very well," Wrayson said. "Who are you, and where are you ringing up from?"
"Remember you have promised!" was the only reply.
"All right! Tell me your name," Wrayson demanded.