"I will give you full particulars as to the girl's address and her habits, and it will be your business to collect such information as will enable us to put the case in the hands of Scotland Yard." "I see," said Tarling and smiled again.

Then he shook his head.

"I'm afraid I can't come into this case, Mr.Lyne." "Can't come in ?" said Lyne in astonishment.

"Why not ?" "Because it's not my kind of job," said Tarling.

"The first time I met you I had a feeling that you were leading me to one of the biggest cases I had ever undertaken.