To Desmond he said:

“I shall be coming along to give you some more lessons very soon, Major. I wish you could see Bellward for yourself: you are very apt at this game, and it would save us much time. But I fear that’s impossible.”

Even before the special had drawn up alongside the platform at Cannon Street, Crook and Matthews swung themselves out and disappeared. When the train stopped, a young man in a bowler hat presented himself at the door of the Pullman.

“The car is there, Mr. Bellward, sir!” he said, helping Desmond to alight. Desmond, preparing to assume his new role, was about to leave the carriage when a sudden thought struck him. What about his uniform strewn about the compartment where he had changed? He ran back. The compartment was empty. Not a trace remained of the remarkable scenes of their night journey.

“This is for you,” said the young man, handing Desmond a note as they walked down the platform.

Outside the station a motor-car with its noisy throbbing awoke the echoes of the darkened and empty courtyard. Desmond waited until he was being whirled over the smooth asphalt of the City streets before he opened the letter.

He found a note and a small key inside the envelope.

“On reaching the house to which you will be conveyed,” the note said, “you will remain indoors until further orders. You can devote your time to studying the papers you will find in the desk beside the bed. For the present you need not fear detection as long as you do not leave the house.” Then followed a few rough jottings obviously for his guidance.

“Housekeeper, Martha, half blind, stupid; odd man, John Hill, mostly invisible, no risk from either. You are confined to house with heavy chill. Do not go out until you get the word.

The last sentence was twice underlined.