“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 always 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 are an amazingly frank young woman. However, I sha’n’t recommend your arrest just yet. I haven’t a particle of evidence against you, don’t y’ know. Annoyin’, ain’t it?”