"The musical comedy doesn't begin until nine," Halliday assured her, and in a few minutes the three of them were comfortably seated in the luxurious car, which whirled at break-neck speed towards the Strand. Of course Lillian and Dan took every advantage of the opportunity, seeing that Mrs. Bolstreath was sympathetic enough to close her eyes to their philanderings. They talked all the way to the Curtain Theatre; they talked all through the musical comedy; and talked all the way back to the house at Hampstead. Mrs. Bolstreath, knowing that the young couple would not have another opportunity for uninterrupted love-making, and being entirely in favor of the match, attended to the stage and left them to whisper unreproved. She did not see why Dan, whom Lillian had loved since the pair had played together as children, should be set aside in favor of a dry-as-dust barrister, even though he had lately come into a fortune and a title. "But, of course," said Mrs. Bolstreath between the facts, "if you could only invent a perfect flying-machine, they would make you a duke or something and give you a large income. Then you could marry."
"What are you talking about, Bolly darling?" asked Lillian, much puzzled, as she could not be supposed to know what was going on inside her friend's head. "About you and Dan, dear. He has no money and-"
"I shall make heaps and heaps of money," said Dan, sturdily; "aviation is full of paying possibilities, and the nation that first obtains command of the air will rule the world. I'm no fool!"
"You're a commoner," snapped Mrs. Bolstreath quickly, "and unless, as I said, you are made a duke for inventing a perfect aeroplane, Lord Curberry is certainly a better match for Lillian."
"He's as dull as tombs," said Miss Moon with her pretty nose in the air. "You can't expect to have everything, my dear child."
"I can expect to have Dan," retorted Lillian decidedly, whereat Dan whispered sweet words and squeezed his darling's gloved hand. "Well," said Mrs. Bolstreath, as the curtain rose on the second act, "I'll do my best to help you since I believe in young love and true love. Hush, children, people are looking! Attend to the stage." Dan and Lillian did their best to follow her advice and sat demurely in their stalls side by side, watching the heroine flirt in a duet with the hero, both giving vent to their feelings in a lively musical number. But they really took little interest in "The Happy Bachelor!" as the piece was called, in spite of the pretty girls and the charming music and the artistic dresses and the picturesque scenery. They were together and that was all they cared about, and although a dark cloud of parental opposition hovered over them, they were not yet enveloped in its gloom. And after all, since Mrs. Bolstreath was strongly prejudiced in their favor, Lillian hoped that she might induce Sir Charles to change his mind as regards Lord Curberry. He loved his daughter dearly and would not like to see her unhappy, as she certainly would be if compelled to marry any one but Dan. Lillian said this to Mrs. Bolstreath and to Dan several times on the way home, and they entirely agreed with her. "Although I haven't much influence with Sir Charles," Mrs. Bolstreath warned them, "and he is fond of having his own way."
"He always does what I ask," said Lillian confidently. "Why, although he was so busy this evening he saw Mrs. Brown when I pleaded for her."
"He couldn't resist you," whispered Dan fondly, "no one could." Mrs. Bolstreath argued this point, saying that Lillian was Sir Charles's daughter, and fathers could not be expected to feel like lovers. She also mentioned that she was jeopardizing her situation by advocating the match, which was certainly a bad one from a financial point of view, and would be turned out of doors as an old romantic fool. The lovers assured her she was the most sensible of women and that if she was turned out of doors they would take her in to the cottage where they proposed to reside like two turtle doves. Then came laughter and kisses and the feeling that the world was not such a bad place after all. It was a very merry trio that alighted at the door of Moon's great Hampstead mansion. Then came a shock, the worse for being wholly unexpected. At the door the three were met by Marcus Penn, who was Moon's secretary. He looked leaner and more haggard than ever, and his general attitude was that of the bearer of evil news. Dan and Lillian and Mrs. Bolstreath stared at him in amazement. "You may as well know the worst at once, Miss Moon," said Penn, his lips quivering with nervousness, "your father is dead. He has been murdered."
CHAPTER II
A COMPLETE MYSTERY
It was Mrs. Bolstreath who carried Lillian upstairs in her stout arms, for when Penn made his brusque announcement the girl fainted straight away, which was very natural considering the horror of the information. Dan remained behind to tell the secretary that he was several kinds of fool, since no one but a superfine ass would blurt out so terrible a story to a delicate girl. Not that Penn had told his story, for Lillian had become unconscious the moment her bewildered brain grasped that the father she had left a few hours earlier in good health and spirits was now a corpse. But he told it to Dan, and mentioned that Mr. Durwin was in the library wherein the death had taken place. "Mr. Durwin? Who is Mr. Durwin?" asked Dan trying to collect his senses, which had been scattered by the dreadful news. "An official from Scotland Yard; I told you so after dinner," said Penn in an injured tone, "he came to see Sir Charles by appointment at nine o'clock and found him a corpse."
"Sir Charles was alive when we left shortly after eight," remarked Dan sharply; "at a quarter-past eight to be precise. What took place in the meantime?"
"Obviously the violent death of Sir Charles," faltered the secretary. "What evidence have you to show that he died by violence?" asked Halliday. "Mr. Durwin called in a doctor, and he says that Sir Charles had been poisoned," blurted out Penn uneasily. "I believe that woman-Mrs. Brown she called herself-poisoned him. She left the house at a quarter to nine, so the footman says, for he let her out, and-"
"It is impossible that a complete stranger should poison Sir Charles," interrupted Dan impatiently, "she would not have the chance."
"She was alone with Sir Charles for thirty minutes, more or less," said Penn tartly; "she had every chance and she took it."
"But how could she induce Sir Charles to drink poison?"
"She didn't induce him to drink anything. The doctor says that the scratch at the back of the dead man's neck-"
"Here!" Dan roughly pushed the secretary aside, becoming impatient of the scrappy way in which he detailed what had happened. "Let me go to the library for myself and see what has happened. Sir Charles can't be dead."
"It's twelve o'clock now," retorted Penn stepping aside, "and he's been dead quite three hours, as the doctor will tell you." Before the man finished his sentence, Dan, scarcely grasping the situation, so rapidly had it evolved, ran through the hall, towards the back of the spacious house, where the library was situated. He dashed into the large and luxuriously furnished room and collided with a police officer, who promptly took him by the shoulder. There were three other men in the room, who turned from the corpse at which they were looking, when they heard the noise of Halliday's abrupt entrance. The foremost man, and the one who spoke first, was short and stout and arrayed in uniform, with cold gray eyes, and a hard mouth. "What's this-what's this?" he demanded in a raucous voice. "Who are you?"
"My name is Halliday," said Dan hurriedly. "I am engaged to Miss Moon and we have just returned from the theatre to hear-to hear-" He caught sight of Moon's body seated in the desk-chair and drooping limply over the table. "Oh, it is true, then! He is dead. Good heavens! who murdered him?"
"How do you know that Sir Charles has been murdered?" asked the officer sternly. "Mr. Penn, the secretary, told me just now in the hall," said Dan, shaking himself free of the policeman. "He blurted it out like a fool, and Miss Moon has fainted. Mrs. Bolstreath has taken her upstairs. But how did it come about? Who found the body, and-"
"I