“It was I, d’ ye see, that urged Mr. Markham to look into the case after your brother had expressed his disbelief in the burglar theory.”
She nodded understandingly. “Oh, Chet sometimes has excellent hunches. It’s one of his very few merits.”
“You, too, I gather, are sceptical in regard to the burglar?”
“Sceptical?” She gave a short laugh. “I’m downright suspicious. I don’t know any burglars, though I’d dearly love to meet one; but I simply can’t bring my flighty brain to picture them going about their fascinating occupation the way our little entertainer did last night.”
“You positively thrill me,” declared Vance. “Y’ see, our minority ideas coincide perfectly.”
“Did Chet give you any intelligible explanation for his opinion?” she asked.
“I’m afraid not. He was inclined to lay his feelings to metaphysical causes. His conviction was due, I took it, to some kind of psychic visitation. He knew, but could not explain: he was sure, but had no proof. It was most indefinite—a bit esoteric, in fact.”
“I’d never suspect Chet of spiritualistic leanings.” She shot her brother a tantalizing look. “He’s really deadly commonplace, when you get to know him.”
“Oh, cut it, Sib,” objected Chester irritably. “You yourself had a spasm this morning when I told you the police were hot-footing it after a burglar.”
Sibella made no answer. With a slight toss of the head she leaned over and threw her cigarette into the grate.
“By the by, Miss Greene”—Vance spoke casually—“there has been considerable mystery about the disappearance of your brother’s revolver. It has completely vanished from his desk drawer. I wonder if you have seen it about the house anywhere.”
At his mention of the gun Sibella stiffened slightly. Her eyes took on an expression of intentness, and the corners of her mouth lifted into a faintly ironical smile.
“Chet’s revolver has gone, has it?” She put the question colorlessly, as if her thoughts were elsewhere. “No . . . I haven’t seen it.” Then, after a momentary pause: “But it was in Chet’s desk last week.”
Chester heaved himself forward angrily.
“What were you doing in my desk last week?” he demanded.
“Don’t wax apoplectic,” the girl said carelessly. “I wasn’t looking for love missives. I simply couldn’t imagine you in love, Chet. . . .” The idea seemed to amuse her. “I was only looking for that old emerald stick-pin you borrowed and never returned.”
“It’s at the club,” he explained sulkily.
“Is it, really! Well, I didn’t find it anyway; but I did see the revolver.—Are you quite sure it’s gone?”
“Don’t be absurd,” the man growled. “I’ve searched everywhere for it. . . . Including your room,” he added vengefully.
“Oh, you would! But why did you admit having it in the first place?” Her tone was scornful. “Why involve yourself unnecessarily?”
Chester shifted uneasily.
“This gentleman”—he again pointed impersonally to Heath—“asked me if I owned a revolver, and I told him ‘yes.’ If I hadn’t, some of the servants or one of my loving family would have told him. And I thought the truth was best.”
Sibella smiled satirically.
“My older brother, you observe, is a model of all the old-fashioned virtues,” she remarked to Vance. But she was obviously distraite. The revolver episode had somewhat shaken her self-assurance.
“You say, Miss Greene, that the burglar idea does not appeal to you.” Vance was smoking languidly with half-closed eyes. “Can you think of any other explanation for the tragedy?”
The girl raised her head and regarded him calculatingly.
“Because I don’t happen to believe in burglars that shoot women and sneak away without taking anything, it doesn’t mean that I can suggest alternatives. I’m not a policewoman—though I’ve often thought it would be jolly good sport—and I had a vague idea it was the business of the police to run down criminals.—You don’t believe in the burglar either, Mr. Vance, or you wouldn’t have followed up Chet’s hunch. Who do you think ran amuck here last night?”
“My dear girl!” Vance raised a protesting hand. “If I had the foggiest idea I wouldn’t be annoying you with impertinent questions. I’m plodding with leaden feet in a veritable bog of ignorance.”
He spoke negligently, but Sibella’s eyes were clouded with suspicion. Presently, however, she laughed gaily and held out her hand.
“Another Régie, monsieur. I was on the verge of becoming serious; and I simply mustn’t become serious. It’s so frightfully boring. Besides, it gives one wrinkles. And I’m much too young for wrinkles.”
“Like Ninon de L’Enclos, you’ll aways be too young for wrinkles,” rejoined Vance, holding a match to her cigarette. “But perhaps you can suggest, without becoming too serious, some one who might have had a reason for wanting to kill your two sisters.”
“Oh, as for that, I’d say we’d all come under suspicion. We’re not an ideal home circle, by any means. In fact, the Greenes are a queer collection. We don’t love one another the way a perfectly nice and proper family should. We’re always at each other’s throats, bickering and fighting about something or other. It’s rather a mess—this ménage. It’s a wonder to me murder hasn’t been done long before. And we’ve all got to live here until 1932, or go it on our own; and, of course, none of us could make a decent living. A sweet paternal heritage!”9
She smoked moodily for a few moments.
“Yes, any one of us had ample reason to be murderously inclined toward all the others. Chet there would strangle me now if he didn’t think the nervous aftermath of the act would spoil his golf—wouldn’t you, Chet dear? Rex regards us all as inferiors, and probably considers himself highly indulgent and altruistic not to have murdered us all long ago. And the only reason mother hasn’t killed us is that she’s paralyzed and can’t manage it. Julia, too, for that matter, could have seen us all boiled in oil without turning a hair. And as for Ada”—her brows contracted and an extraordinary ferocity crept into her eyes—“she’d dearly love to see us all exterminated. She’s not really one of us, and she hates us. Nor would I myself have any scruples about doing away with the rest of my fond family. I’ve thought of it often, but I could never decide on a nice thorough method.” She flicked her cigarette ash on the floor. “So there you are. If you’re looking for possibilities you have them galore. There’s no one under this ancestral roof who couldn’t qualify.”
Though her words were meant to be satirical, I could not help feeling that a sombre, terrible truth underlay them. Vance, though apparently listening with amusement, had, I knew, been absorbing every inflection of her voice and play of expression, in an effort to relate the details of her sweeping indictment to the problem in hand.
“At any rate,” he remarked offhandedly, “you
