“What did he say to you?” “Simply: 'Drive off.'” “Did you take him to be an Englishman from his speech?” “No; he was not an Englishman. He had a foreign accent.” “French? German?” “No,” said Brian, looking up and meeting the glance of the fierce eyes. “Asiatic!” Inspector Dunbar, closely as he held himself in hand, started slightly. “Are you sure?” “Certainly. Before I--when I was younger--I traveled in the East, and I know the voice and intonation of the cultured Oriental.” “Can you place him any closer than that?” “No, I can't venture to do so.” Brian's manner was becoming, momentarily, more nearly that of a gentleman. “I might be leading you astray if I ventured a guess, but if you asked me to do so, I should say he was a Chinaman.” “A CHINAMAN?” Dunbar's voice rose excitedly. “I think so.” “What occurred next?” “I turned my cab and drove off out of the Square.” “Did you see where the man went?” “I didn't. I saw nothing of him beyond his hand.” “And his hand?” “He wore a glove.” “And now,” said Dunbar, speaking very slowly, “where did you pick up your fare?” “In Gillingham Street, near Victoria Station.” “From a house?” “Yes, from Nurse Proctor's.” “Nurse Proctor's! Who is Nurse Proctor?” Brian shrugged his shoulders in a nonchalant manner, which obviously belonged to an earlier phase of existence. “She keeps a nursing home,” he said--“for ladies.” “Do you mean a maternity home?” “Not exactly; at least I don't think so. Most of her clients are society ladies, who stay there periodically.” “What are you driving at?” demanded Dunbar. “I have asked you if it is a maternity home.” “And I have replied that it isn't. I am only giving you facts; you don't want my surmises.” “Who hailed you?” “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.”