Sir Horace's glove the fellow to it was dropped in the taxi-cab, or
dropped between the taxi-cab and the house. If the glove had been lost at
the other end of the journey in Scotland Sir Horace would have flung this
one out of the carriage window when he became aware of the loss. As I
have told you no glove was found between the gate at Riversbrook and the
room in which Sir Horace was murdered. I got from the police the number
of the taxi-cab in which Sir Horace was driven from St. Pancras, and the
driver tells me that no glove was left in his cab. So what have we to do
next, Joe?"

"To find the missing glove? It's a tough job, ain't it, sir?"

"Yes and no," replied Crewe. "It is possible to make some reasonable
safe deductions in regard to it. These would indicate what had happened
to it, and knowing where to look, or, rather, in what circumstances we
might expect to find it, we might throw a little light on it. In the
first place, it might be assumed that if the glove did not belong to Sir
Horace it belonged to some one who visited him on the night he returned
unexpectedly from Scotland. That indicates that his visitor knew Sir
Horace was returning; a most important point, for if he knew Sir Horace
was returning he knew why he was returning--which no one else knows up to
the present as far as I have been able to gather--and in all probability
was responsible for his return, say, sent him a letter or a telegram
which brought him to London. So we come to the possibility of an angry
scene in the room in which Sir Horace's dead body was subsequently found.
We have the possibility of the visitor leaving the house in a high state
of excitement, hastily snatching up the hat and gloves he had taken off
when he arrived, and in his excitement dropping unnoticed the right-hand
glove on the floor."