that her mistress returned to her flat alone about a quarter of an
hour later. Next point. Inquiries for the cabman have been made at all
the ranks since early this morning, and he turned up at the Yard about
a couple of hours ago. His story is simple enough; some one called up
the rank where he chanced to be standing that evening, instructing him
to call for Sir Marcus at the stage-door of the New Avenue Theater and
to drive him to--"

He paused:

"Yes?"

"To the Red House!"

"At last we have it!" I cried excitedly.

"There is no doubt of it," answered Gatton; "the cabman drove him
there, and it was certainly at the Red House that he met his death.
Indeed the cabby appears to be the last witness who spoke to the
murdered man. He inquired his way to the Red House from a chance
pedestrian, a tramp, whom he met at the corner of College Road. He has
even described this person to us, but I don't think his evidence of
sufficient importance to justify our searching for him. On reaching
the Red House the cabman and his fare found it to be vacant. Sir
Marcus, however, who had a very brusk manner with his inferiors,
having paid the cabman, curtly dismissed him, and the man, who admits
having bargained for a double fare for the journey, because it was
such an out-of-the-way spot, drove away vaguely curious, but not so
curious as another might have been, since London cabmen are used to
strange jobs."