'Well, he weren't a coloured man in the proper sense. Not a real nigger with curly hair an all; just coffee. Some sort of Indian I suppose, and very well spoken. It's expected that tenants' visitors shall go up and ring the bells of those they want. But this man rang again and again for me. I went up prepared to give whoever it was a piece of my mind, but he told me he'd rung Mrs. Mauriac's bell again and again and couldn't get no reply, and could I tell him when she would be coming in. Of course I told him I'd no idea; then he asked my permission to wait there in the front hall till she came in. To that I said, "You can please yerself, there's no law against it". Then when I come up about an hour later with a bottle of whisky for the gentleman in the second floor back that we call "the Colonel", the coloured gent was no longer there. So maybe she'd come in and gone straight out again with him.'

'Thank you.' Barney turned on his heel, ran quickly up the basement stairs and went out into the street. He had no doubt whatever that the 'coloured gentleman' was Ratnadatta; but what could possibly have induced Margot - as he thought of her - to go out with him? Surely just pique at his, Barney's, having let her down could not account for her reversing her decision to have nothing more to do with the Indian? And if, from annoyance and boredom, she had allowed herself to be persuaded, why had she not returned to her flat since? Perhaps he had hypnotized her and was now detaining her against her will in the mansion at Cremorne? In any case, it seemed certain that Ratnadatta having come to Cromwell Road on Saturday evening, it was he who was responsible for her disappearance; and its implications were now extremely alarming.

Barney's immediate impulse was to go to Cremorne, but a moment's thought was enough to check it. Bulldog Drummond tactics were all very well in fiction, but for him to break in and attempt to tackle on his own the permanent staff that must live in the house could result only in disaster. He must restrain his impatience, make a report, secure a search warrant and have Special Branch raid the place officially. But it had taken him barely half an hour to search Mary's flat, so it was still not yet eight o'clock and C.B. would not be in his office until half past nine.

Now a prey to acute anxiety, Barney strode along to the Earls Court Road, went into a Lyons and killed time as best he could by having breakfast there. Well before half past nine he arrived at the office and posted himself in the hall ready to waylay C.B.