“Well, it might have been a boy’s voice.”
“Oh, surely not.”
“We cannot eliminate the possibility, and then again it might have been a man’s voice not disguised.”
“How could that be?”
“There are some men with treble voices who sing falsetto like a boy. We cannot take anything for granted.”
Boyce gave a sniff. He did not like this sort of speculation.
“I must get back and change, and then get some food, and catch the night train,” said Collins. “I have plenty of time, so we can go into the position if you care to. You had better have some grub with me, and if you care to join us,” he said to Boyce, “I shall be delighted.”
“Thank you very much, I will with pleasure,” said the other. It was just what he wanted. He could listen to the others and then retail the information as his own. It was the way in which he worked his department.
A messenger boy was ushered in by a clerk, and handed a document to Sinclair, who signed the receipt and the lad departed.
In haste he opened the envelope, and pulled out another which had been opened. It was addressed to the Central News Agency, and was a Government envelope. Inside was a sheet of paper with the official stamp of Scotland Yard.