"The subtle personality, Wigan."

"When did you guess?"

"I didn't guess--I didn't think it possible. Bates' disbelief in the
supernatural made me a little suspicious, but I didn't think it possible.
To-night--that ape--the whole plot--I could only think of Randall. There
was no one else."

We left the house at once, both of us in an excited state.

The constable I had on special duty soon had several others with him, and
before dawn No. 5 Manleigh Road was raided.

It was only a garbled statement which got into the papers, and
probably the whole truth will never be known; but I gradually gathered
the main facts, partly from the doctor's confederates, partly from
some of his victims.

Dr. Randall, posing as a nerve specialist, and fully qualified to do so,
had lived a double life. As a doctor he was respected and was fairly
successful; as the head and organizer of a small army of miscreants he
had been eminent for years.

Under the guise of a respectable boarding-house, No. 5 had been used
as the headquarters of the gang, and the operations had been so
widespread, so all-embracing in the field of crime, that after the
raid many mysteries which the police had failed to unravel were
credited to Randall. Many of these he could have had nothing to do