THE MASTER MYSTERY. Arthur B. Reeve
employe," he said, sadly, "and it is his privilege, I suppose, to laugh at me." He hesitated.
"Oh, but, Quentin—Mr. Locke—I'm—I'm so sorry. Surely he could not have meant it."
At the head of the stairs Locke tried to smile.
"Don't worry," he said, repressing his feelings. "It will make no difference between us. Good night."
They parted, Eva closing her door for a sleepless night, Locke to work far into the night in his laboratory until sheer exhaustion overcame his feelings.
Meanwhile, in the dining-room, the two men kept terrible vigil, hour after hour, oblivious of time, in wild and wanton laughter—maniacal abandon.
A terrible blow had been struck and Reason was tottering on her throne.
Two men had been stricken by an unknown hand—stark, stark mad.
Chapter V
"Father—please—open the door!"
It was early the following morning that the butler with frightened face had called Eva Brent to tell her that her father and Flint had been locked in the dining-room all night and were still laughing madly.
Eva had hurried down-stairs, encountering Zita as she ran. It was true. She could hear the voices inside. Nor could she get any answer from the two men.
"Oh—Zita—please—can't something be done?" Eva implored.
With a hasty word Zita hurried away just as Herbert Balcom himself entered the house from the street.
In utter surprise Balcom nodded at Zita as she poured forth the story of what had been discovered in the morning, then pushed past her in high excitement.
"What's wrong?" he asked as he came upon the butler and Eva still knocking excitedly at the dining-room door.
Eva was almost in a panic as she answered, "Father and Mr. Flint have been in there laughing ever since last night."
Balcom tried to comfort her. But somehow his sympathy sent a cold shudder through the poor girl.
Meanwhile Zita had encountered Locke hurrying down at the sound of the commotion. To him she told the story, again hurt that his interest was solely for Eva, not in herself.
Locke paused long enough to seize an umbrella from the rack, rip the cover off, and break out a rib, to which he tied a piece of string while he hurried to the group at the door.
"Break down the door and call the police," ordered Balcom.
The butler reached for a chair and was about to swing it over his head to break down the door.
"Stop!" interrupted Locke.
The young scientist knelt down, inserted the umbrella steel through the keyhole, and bent it by the string as he fished about with it on the other side to find the bolt. Meanwhile the butler telephoned frantically for the police.
It was at this height of excitement that Paul Balcom entered. A moment's talk with Zita, and he, too, joined the group.
Sympathetically he spoke to Eva, but Eva scarcely responded in the fashion of a girl to the man whom she was going to marry. Her attention was riveted on Locke, who was kneeling before the door. Paul saw it and an ominous scowl crossed his face.
Carefully Locke worked the umbrella steel and the string until he had caught the bolt. Then he shot the bolt back and rose to his feet. All watched him expectantly as he threw open the door.
Such a sight as met their eyes one could scarcely picture.
There were Brent and Flint at the table—laughing—laughing. The candles had long since burned out. On the floor lay the automaton model.
"Father!" cried Eva, running to him.
But there was no look of recognition on Brent's face.
"Don't you know me? Speak to me! Father!"
Instead, Brent merely patted her shoulder and laughed hollowly. Eva, on her knees by him, sobbed and smoothed his head by turns.
Locke, bending over Flint, found him in much the same condition.
Meanwhile, Balcom and Paul had picked up the model of the automaton and exchanged a quick glance.
"This man Locke's actions are suspicious," exclaimed Balcom, hastily. "He was in the house last night."
Outside they could hear the arrival of the detectives summoned by the butler.
"Go to Eva," nudged Balcom to Paul.
A moment later the butler entered with the detectives.
At the sight of the automaton model in Balcom's hands the butler cried out:
"That is what attacked me last night—only larger—much larger!"
All eyes were now on the butler. Quickly Balcom took advantage of the situation thus created. Locke, also, left Flint and moved over to the group examining the model. As he did so his eye caught a piece of paper under the sideboard. He was about to pick it up when he realized that all were looking at him. Quickly he covered his discovery and faced them.
"This man is the stranger in the house," cried Balcom, in anger. "Arrest him and make him explain."
It was the work of only an instant for the chief detective to step up to Locke and slip the bracelets on his wrists.
"Don't!" cried Eva.
"Please—my dear—your father," remonstrated Paul.
At that instant Brent was seized with another violent fit of coughing and laughter. Eva, distracted, was half fainting.
Thus, with Locke handcuffed, Balcom and Paul were triumphant.
Locke saw his chance. But the handcuffs prevented him from using his hands. In the instant that all were diverted toward Brent, with incredible deftness Locke slipped his hand from the cuffs, one link of which fell open as if by magic, through a secret all his own. He reached down and picked up the paper under the sideboard and read it. It was the letter Brent had been writing and served only to increase his perplexity. He read it again, then crushed it into his pocket, and before any one had discovered his trick had slipped his hand back into the cuffs and they were locked again.
At that very moment the telephone rang and the chief of the detectives answered. As he did so a perplexed expression crossed his face and he walked over quickly to Locke.
"I—beg your pardon," he apologized as he began to unlock the handcuffs.
"Here, my man, what are you doing?" interrupted Balcom.
"I know my business. You lay off," growled the detective.
A moment later Locke, with a slight smile on his handsome face, was answering the telephone.
Not a soul save the detective, even yet, suspected the true identity of Locke, even as he answered over the telephone with a respectful, "Yes, sir."
The fact of the matter was that the message had come most opportunely. It was from the chief of the Department of Justice himself, ordering Locke to stay at the house until he had secured the evidence that would allow the department to proceed against the company under the anti-trust law. That, then, was the explanation of the secret dictagraph which Locke had installed, the explanation of his apparent faithlessness to his employer.
But weightier matters were now on Locke's mind. Here he was faced by the case of his life, involving the happiness of the very girl whom he had so soon come to love. His incentive was double—love and success: triple—above all, justice.
By this time the household themselves were sufficiently calm to help Brent to his bedroom and Flint to a guest-chamber.
Balcom