"The mattress on that bed," she whispered, "rests on two iron rods. They are loose and can be lifted. I planned to smash the lock, but the noise would have brought Prothero. But you could defend yourself with one of them."

Ford had already run to the cot and dropped to his knees. He found the mattress supported on strips of iron resting loosely in sockets at the head and foot. He raised the one nearer him, and then, after a moment of hesitation, let it drop into place.

"That's fine!" he whispered. "Good as a crowbar.'" He shook his head in sudden indecision. "But I don't just know how to use it. His automatic could shoot six times before I could swing that thing on him once. And if I have it in my hands when he opens the door, he'll shoot, and he may hit you. But if I leave it where it is, he won't know I know it's there, and it may come in very handy later."

In complete disapproval the girl shook her head. Her eyes filled with concern. "You must not fight him," she ordered. "I mean, not for me. You don't know the danger. The man's not sane. He won't give you a chance.

He's mad. You have no right to risk your life for a stranger. I'll not permit it----"

Ford held up his hand for silence. With a jerk of his head he signified the door. "They've stopped talking," he whispered.

Straining to hear, the two leaned forward, but from the hall there came no sound. The girl raised her eyebrows questioningly.

"Have they gone?" she breathed.

"If I knew that," protested Ford, "we wouldn't be here!"

In answer to his doubt a smart rap, as though from the b.u.t.t of a revolver, fell upon the door. The voice of Prothero spoke sharply:

"You, who call yourself Grant!" he shouted.

Before answering, Ford drew Miss Dale and himself away from the line of the door, and so placed the girl with her back to the wall that if the door opened she would be behind it. "Yes," he answered.

"Pearsall and I," called Prothero, "have decided how to dispose of you--of both of you. He has gone below to make preparations. I am on guard. If you try to break out or call for help, I'll shoot you as I warned you!"

"And I warn you," shouted Ford, "if this lady and I do not instantly leave this house, or if any harm comes to her, you will hang for it!"

Prothero laughed jeeringly.

"Who will hang me?" he mocked.

"My friends," retorted Ford. "They know I am in this house. They know WHY I am here. Unless they see Miss Dale and myself walk out of it in safety, they will never let you leave it. Don't be a fool, Prothero!" he shouted. "You know I am telling the truth. You know your only chance for mercy is to open that door and let us go free."

For over a minute Ford waited, but from the hall there was no answer.

After another minute of silence, Ford turned and gazed inquiringly at Miss Dale.

"Prothero!" he called.

Again for a full minute he waited and again called, and then, as there still was no reply, he struck the door sharply with his knuckles. On the instant the voice of the Jew rang forth in an angry bellow.

"Keep away from that door!" he commanded.

Ford turned to Miss Dale and bent his head close to hers.

"Now, why the devil didn't he answer?" he whispered. "Was it because he wasn't there; or is he planning to steal away and wants us to think that even if he does not answer, he's still outside?" The girl nodded eagerly.

"This is it," she whispered. "My uncle is a coward or rather he is very wise, and has left the house. And Prothero means to follow, but he wants us to think he's still on guard. If we only KNEW!" she exclaimed.

As though in answer to her thought, the voice of Prothero called to them.

"Don't speak to me again," he warned. "If you do, I'll not answer, or I'll shoot!"

Flattened against the wall, close to the hinges of the door, Ford replied flippantly and defiantly:

"That makes conversation difficult, doesn't it?" he called.

There was a bursting report, and a bullet splintered the panel of the door, flattened itself against the fireplace, and fell tinkling into the grate.

"I hope I hit you!" roared the Jew.

Ford pressed his lips tightly together. Whatever happy retort may have risen to them was forever lost. For an exchange of repartee, the moment did not seem propitious.

"Perhaps now," jeered Prothero, "you'll believe I'm in earnest!"

Ford still resisted any temptation to reply. He grinned apologetically at the girl and shrugged his shoulders. Her face was white, but it was white from excitement, not from fear.

"What did I tell you?" she whispered. "He IS mad--quite mad!"

Ford glanced at the bullet-hole in the panel of the door. It was on a line with his heart. He looked at Miss Dale; her shoulder was on a level with his own, and her eyes were following his.

"In case he does that again," said Ford, "we would be more comfortable sitting down."

With their shoulders against the wall, the two young people sank to the floor. The position seemed to appeal to them as humorous, and, when their eyes met, they smiled.

"To a spectator," whispered Ford encouragingly, "we MIGHT appear to be getting the worst of this. But, as a matter of fact, every minute Cuthbert does not come means that the next minute may bring him."

"You don't believe he was hurt?" asked the girl.

"No," said Ford. "I believe Prothero found him, and I believe there may have been a fight. But you heard what Pearsall said: 'The man outside will tell.' If Cuthbert's in a position to tell, he is not down an area with a knife in him."

He was interrupted by a faint report from the lowest floor, as though the door to the street had been sharply slammed. Miss Dale showed that she also had heard it.

"My uncle," she said, "making his escape!"

"It may be," Ford answered.

The report did not suggest to him the slamming of a door, but he saw no reason for saying so to the girl.

With his fingers locked across his knees, Ford was leaning forward, his eyes frowning, his lips tightly shut. At his side the girl regarded him covertly. His broad shoulders, almost touching hers, his strong jaw projecting aggressively, and the alert, observant eyes gave her confidence. For three weeks she had been making a fight single-handed.

But she was now willing to cease struggling and relax. Quite happily she placed herself and her safety in the keeping of a stranger. Half to herself, half to the man, she murmured: "It is like 'The Sieur de Maletroit's Door."'

Without looking at her, Ford shook his head and smiled.

"No such luck," he corrected grimly. "That young man was given a choice.

The moment he was willing to marry the girl he could have walked out of the room free. I do not recall Prothero's saying I can escape death by any such charming alternative." The girl interrupted quickly.

"No," she said; "you are not at all like that young man. He stumbled in by chance. You came on purpose to help me. It was fine, unselfish."

"It was not," returned Ford. "My motive was absolutely selfish. It was not to help you I came, but to be able to tell about it later. It is my business to do that. And before I saw you, it was all in the day's work.

But after I saw you it was no longer a part of the day's work; it became a matter of a life time."