"The woman did--the woman in the fur coat. I was just passing the door
very slowly when it was flung open with a bang, and she rushed out as
though hell were after her. Before I had time to pull up, she threw
herself into my cab and screamed: 'Palace Mansions! Westminster!' I
reached back and shut the door, and drove right away."

"When did you see that you were followed?"

"We were held up just outside the music hall, and looking back, I saw
that my fare was dreadfully excited. It didn't take me long to find out
that the cause of her excitement was a big limousine, three or four back
in the block of traffic. The driver was some kind of an Oriental, too,
although I couldn't make him out very clearly."

"Good!" snapped Dunbar; "that's important! But you saw nothing more of
this car?"...

"I saw it follow me into the Square."

"Then where did it wait?"

"I don't know; I didn't see it again."

Inspector Dunbar nodded rapidly.

"Have you ever driven women to or from this Nurse Proctor's before?"

"On two other occasions, I have driven ladies who came from there. I
knew they came from there, because it got about amongst us that the tall
woman in nurse's uniform who accompanied them was Nurse Proctor."