Immediately after the patient was put to bed Cutty changed. A nondescript suit of the day-labourer type and a few deft touches of coal dust completed his make-up.

"I shan't be back until morning," he announced. "Work to do.

Kuroki will be at your service through the night, Miss Frances.

Strike that Burmese gong once, at any hour. Come along, Harrison."

"Want any company?" asked Harrison, with a belligerent twist to his moustache.

Cutty laughed. "No. You run along to your lambs. I'm running with the wolves to-night, old scout, and you might get that spick-and-span uniform considerably mussed up. Besides, it's raining."

"But what's to become of Miss Conover? She ought not to remain alone in that apartment."

"Well, well! I thought of that, too. But she can take care of herself."

"Those ruffians may call up the hospital and learn that we tricked them.

"And then?"

"Try to force the truth from Miss Conover."

"That's precisely the wherefore of this coal dust. On your way!"

Eleven o'clock. Kitty was in the kitchen, without light, her chair by the window, which she had thrown up. She had gone to bed, but sleep was impossible. So she decided to watch the Gregor windows.

Sometimes the mind is like a movie camera set for a double exposure.

The whole scene is visible, but the camera sees only half of it.

Thus, while she saw the windows across the court there entered the other side of her mind a picture of the immaculate Cutty crossing the platform with Johnny Two-Hawks thrown over his shoulder. The mental picture obscured the actual.

She had called him old. Well, he was old. And no doubt he looked upon her as a child, wanting her to spend the night at a hotel! The affair was over. No one would bother Kitty Conover. Why should they? But it took strength to shoulder a man like that. What fun he and her father must have had together! And Cutty had loved her mother! That made Kitty exquisitely tender for a moment. All alone, at the age when new friendships were impossible. A lovable man like that going down through life alone!

Census taker of alien undesirables; a queer occupation for a man so famous as Cutty. Patriotism - to plunge into that seething revolutionary scum to sort the dangerous madmen from the harmless mad-men. Courage and strength and mental resource; yes, Cutty possessed these; and he would be the kind to laugh at a joke or a hurt.

One thing, however, was indelibly printed on her mind. Stefani Gregor - either Cutty had met and known the man or he had heard of him.

Suddenly she became conscious that she was blinking as one blinks from mirror-reflected sunlight. She cast about for the source of this phenomenon. Obliquely from between the interstices of the fire-escape platform came a point of moving white light. She craned her neck. A battery lamp! The round spot of light worked along the cement floor, vanished occasionally, reappeared, and then vanished altogether. Somebody was down there hunting for something. What?

Kitty remained with her head out of the window for some time, unmindful of the spatter of rain. But nothing happened. The man was gone. Of course the incident might not have the slightest bearing upon the previous adventures of this amazing night; still, it was suggestive. The young man had worn something round his neck.

But if his enemies had it why should this man comb the court, unless he was a tenant and had knocked something off a window ledge?

She began to appreciate that she was very tired, and decided to go back to bed. This time she fell asleep. Her disordered thoughts rearranged themselves in a dazzling dream. She found herself wandering through a glorious translucent green cavern - a huge emerald. And in the distance she heard that unmistakable tumpitum-tump! tumpitum-tump! It drew her irresistibly. She fought and struggled against the fascinating sound, but it continued to draw her on. Suddenly from round a corner came the squat man, his hair a la Fuzzy-Wuzzy. He caught her savagely by the shoulder and dragged her toward a fire of blazing diamonds. On the other side of that fire was a blonde young woman with a tiara of rubies on her head. "Save me! I am Olga, Olga!" Kitty struggled fiercely and awoke.

The light was on. At the side of her bed were two men. One of them was holding her bare shoulder and digging his fingers into it cruelly. They looked like coal heavers.

"We do not wish to harm you, and won't if you're sensible. Where did they take the man you brought