"Step inside, brother," he invited earnestly, almost eagerly, notwithstanding his monotonous nasal tw.a.n.g. "Step inside and find peace.

Step inside and the Lord will help you. Throw your burden away on the threshold."

The man's first impulse at being addressed had seemed to be one of terror.

Then he recognised the uniform and hesitated. The light which streamed out from the building seemed warm and pleasant. The rain was coming down in sheets. They were singing a hymn, unmusical, unaccompanied, yet something in the unison of those human voices, one quality--the quality of earnestness, of faith--seemed to make an irresistible appeal to the terrified wanderer. Slowly he moved towards the steps. The man took him by the arm and led him in. There were the best part of a hundred people taking their places after the singing of the hymn. A girl was standing up before them on a platform. She was commencing to speak but suddenly broke off. She held out her arms towards where the Professor's confidential servant stood hesitating.

"Come and tell us your sins," she called out. "Come and have them forgiven. Come and start a new life in a new world. There is no one here who thinks of the past. Come and seek forgiveness."

For a moment this waif from the rain-swamped world hesitated. The light of an infinite desire flashed in his eyes. Then he dropped his head. These things might be for others. For him there was no hope. He shook his head to the girl but sank into the nearest seat and on to his knees.

"He repents!" the girl called out. "Some day he will come! Brothers and sisters, we will pray for him."

The rain dashed against the windows. The only other sound from outside was the clanging of the street cars. The girl's voice, frenzied, exhorting, almost hysterical, pealed out to the roof. At every pause, the little gathering of men and women groaned in sympathy. The man's frame was shaken with sobs.

CHAPTER IV

THE POCKET WIRELESS

1.

Mr. Sanford Quest sat in his favourite easy-chair, his cigar inclined towards the left hand corner of his mouth, his attention riveted upon a small instrument which he was supporting upon his knee. So far as his immobile features were capable of expression, they betrayed now, in the slight parting of his lips and the added brightness of his eyes, symptoms of a lively satisfaction. He glanced across the room to where Lenora was bending over her desk.

"We've done it this time, young woman," he declared triumphantly. "It's all O.K., working like a little peach."

Lenora rose and came towards him. She glanced at the instrument which Quest was fitting into a small leather case.

"Is that the pocket wireless?"

He nodded.

"I've had Morrison out at Harlem all the morning to test it," he told her.

"I've sent him at least half-a-dozen messages from this easy-chair, and got the replies. How are you getting on with the code?"

"Not so badly for a stupid person," Lenora replied. "I'm not nearly so quick as Laura, of course, but I could make a message out if I took time over it."

Laura, who had been busy with some papers at the further end of the room, came over and joined them.

"Say, it's a dandy little affair, that, Mr. Quest," she exclaimed. "I had a try with it, a day or so ago. Jim spoke to me from Fifth Avenue."

"We've got it tuned to a shade now," Quest declared. "Equipped with this simple little device, you can speak to me from anywhere up to ten or a dozen miles. What are you working on this morning, Laura?"

"Same old stunt," the girl replied. "I have been reading up the records of the savants of New York. From what I can make out about them, it doesn't seem to me that there's one amongst the whole bunch likely to have pluck enough to tamper with the Professor's skeleton."

Quest frowned a little gloomily. He rose to his feet and moved restlessly about the room.

"Say, girls," he confessed, "this is the first time in my life I have been in a fix like this. Two cases on hand and nothing doing with either of them. Criminologist, indeed! I guess I'd better go over to England and take a job at Scotland Yard. That's about what I'm fit for. Whose box is this?"

Quest had paused suddenly in front of an oak sideboard which stood against the wall. Occupying a position upon it of some prominence was a small black box, whose presence there seemed to him unfamiliar. Laura came over to his side and looked at it also in puzzled fashion.

"Never saw it before in my life," she answered. "Say, kid, is this yours?"

she added, turning to Lenora.

Lenora shook her head. She, too, examined it a little wonderingly.

"It wasn't there a short time ago. I brought a duster and went over the sideboard myself."

Quest grunted.

"H'm! No one else has been in the room, and it hasn't been empty for more than ten minutes," he remarked. "Well, let's see what's inside, any way."

"Just be careful, Mr. Quest," Laura advised. "I don't get that box at all."

Quest pushed it with his forefinger.

"No bomb inside, any way," he remarked. "Here goes!"

He lifted off the lid. There was nothing in the interior but a sheet of paper folded up. Quest smoothed it out with his hand. They all leaned over and read the following words, written in an obviously disguised hand:

"You have embarked on a new study--anthropology. What characteristic strikes you most forcibly in connection with it?

Cunning? The necklace might be where the skeleton is. Why not begin at the beginning?"

The note was unsigned, but in the spot where a signature might have been there was a rough pen drawing of two hands, with fingers extended, talon fashion, menacingly, as though poised to strike at some unseen enemy.

Quest, after their first moment of stupefaction, whistled softly.

"The hands!" he muttered.

"What hands?" Lenora asked.

"The hands that gripped Mrs. Rheinholdt by the throat," he reminded them.

"Don't you remember? Hands without any arms?"

There was another brief, almost stupefied silence. Then Laura broke into speech.

"What I want to know is," she demanded, "who brought the thing here?"

"A most daring exploit, any way," Quest declared. "If we could answer your question, Laura, we could solve the whole riddle. We are up against something, and no mistake."

Lenora shivered a little. The mystery of the thing terrified her, the mystery which only stimulated her two companions.

"The hand which placed that box here," Quest continued slowly, "is capable of even more wonderful things. We must be cautious. h.e.l.lo!"

The door had opened. The Professor stood upon the threshold. He carried his soft felt hat in his hand. He bowed to the two young women courteously.

"I trust that I have done right in coming up?" he enquired.