It was not difficult to watch the slender figure of the stranger as he made his way leisurely up the staircase. In the ordinary course Mercer would have hardly recognized him at all. There were hundreds of people there in all kinds of the extravagant fancy dress which one usually associates with theatrical enterprise. But the more Mercer looked at the little man the more convinced was he that the stranger was not disguised at all. He was slight and slender, his dress-clothes fitted him to perfection, and he wore the air of a man who was accustomed to that kind of thing. As to his head it was small and lean, his skin glistened like polished parchment, his dark, restless eyes were turned from side to side, though he did not appear in the least degree excited.

"He interests you?" Wilfrid asked.

"Why, certainly," Russell replied. "I should have thought that he would interest you, too, knowing all you do know. Now who should you say that fellow is, and where do you suppose he comes from? Take your time."

"Well, I should say that he is an Asiatic of some kind," Wilfrid replied. "And a full-blooded one at that. If he did not look so much at home in his dress-clothes and on such easy terms with his surroundings I could imagine him to be the head of some savage tribe or another. I can see him in his warpaint with his braves around him. But, of course, that is all nonsense, Russell. Whatever nationality the fellow belongs to, he is an educated man, and they don't breed that kind in the Malay Archipelago."

"Now that is just where you make the mistake," Russell answered. "There are certain islands in the Malay Archipelago which have never been explored by white men yet. Of course, I am not speaking of orchid-hunters and that kind of people, but I know for a fact that in North-eastern Borneo there are one or two tribes who come very near the level of our modern civilization. But we don't want to discuss that at present. Still, I was personally acquainted with one chief whose two sons were being educated at English public schools. Perhaps I will tell you his history later. Meanwhile, I don't mean to lose sight of our friend. Let's push boldly inside and chance it. I know two or three officials connected with the theatre, and they will help me if they can. Ah, there is Franklin, the very man I want to see. Come along."

Swan dragged his companion eagerly up the stairs and laid his hand on the shoulder of a florid man in front of him. As the other man turned his face, there was no occasion to ask his profession. He had stage manager written all over him.

"Don't stop to ask questions," Russell said. "This is my friend, Wilfrid Mercer. We had invitations for the front of the house to-night; in fact, you were good enough to get them for us. As things have turned out, it is more or less essential that we should become your guests for the time being. Can't you rig us up in something in your property-room?"

"You were always a queer sort," the stage manager said with a smile. "I suppose it is no use asking you what mischief you are up to now? Oh, I can smuggle you in right enough, especially as certain guests have failed us at the last moment. If you will come with me I will rig you both up in some sort of fancy dress. Only it seems hard that I should be kept out of the joke. Come this way."

"You shall know all about the joke in good time," Russell said grimly. "For the present, all I want you to do is to leave us severely alone. I suppose we could mention your name if any awkward questions were asked."

The stage manager replied good-naturedly enough, and some half an hour later Russell and his companion were roaming about the flies, mixing unconcernedly with hundreds of well-known people who appeared to be bent upon enjoyment. Meanwhile, the little yellow man had vanished.