Tab heard with mingled feelings. To assist the police actively meant that his newspaper stories would suffer. He would not be allowed to use any of the information he secured, except in the tamest, most colourless form. If he remained outside, he was fairly certain to get a line to the crime, which he might use without laying himself open to the charge of breaking faith. There was no time to discover the mind of his chief on the subject—he had to make an instant decision.

“I’ll go,” he said. “This means, of course, that I shall only be able to write the punk stuff that the evening papers print, but I’ll take a chance.”

He was surprised, when he came out into Doughty Street, to find that a private car had been placed at Carver’s disposal. Knowing the parsimony of headquarters, he expressed his surprise.

“It is Mr. Trasmere’s own. He has had it garaged for the past year, but Mr. Lander gave us permission to get it out and offered to pay the running expenses.”

“Good old Babe,” said Tab, sinking back into the carriage seat. “He didn’t tell me anything about it.”

Nearing the house, Carver broke the silence.

“I have something to show you later,” he said. “Our men have been at the Post Office all night, making enquiries as to Mr. Trasmere’s correspondence. It appears that he has had a whole lot during the past year or two. We shall probably come across it in the boxes that remain unsearched. But that wasn’t the big thing we found. Most of the telegraph staff were off duty yesterday. It was only this morning that we learnt a telegram had been received at Mayfield about ten minutes before Walters disappeared.”

When they were in the sitting-room and the door was closed, Carver produced the telegram from his pocket. It was handed in at the General Post Office and ran:

“Remember 17th July, 1913. Newcastle police coming for you at three o’clock.”

It was unsigned.