Markham immediately summoned Swacker and sent him for Tracy. The detective came at once, polishing his pince-nez and bowing affably. One would have taken him for an actor rather than a detective, but his ability in matters requiring delicate handling was a byword in the department.
“I want you to fetch Mr. Louis Mannix again,” Markham told him. “Bring him here at once; I’m waiting to see him.”
Tracy bowed genially and, adjusting his glasses, departed on his errand.
“And now,” said Markham, fixing Vance with a reproachful look, “I want to know what your idea was in putting Lindquist on his guard about the night nurse. Your brain isn’t at par this afternoon. Do you think I didn’t have the nurse in mind? And now you’ve warned him. He’ll have until eleven to-morrow morning to coach her in her answers. Really, Vance, I can’t conceive of anything better calculated to defeat us in our attempt to substantiate the man’s alibi.”
“I did put a little fright into him, didn’t I?” Vance grinned complacently. “Whenever your antagonist begins talking exaggeratedly about the insanity of your notions, he’s already deuced hot under the collar. But, Markham old thing, don’t burst into tears over my mental shortcomings. If you and I both thought of the nurse, don’t you suppose the wily doctor also thought of her? If this Miss Finckle were the type that could be suborned, he would have enlisted her perjurious services two days ago, and she would have been mentioned, along with the comatose Mrs. Breedon, as a witness to his presence at the sanitarium Monday night. The fact that he avoided all reference to the nurse shows that she’s not to be wheedled into swearing falsely. . . . No, Markham. I deliberately put him on his guard. Now he’ll have to do something before we question Miss Finckle. And I’m vain enough to think I know what it’ll be.”
“Let me get this right,” put in Heath. “Am I, or am I not, to round up the Finckle woman to-morrow morning?”
“There’ll be no need,” said Vance. “We are doomed, I fear, not to gaze upon this Florence Nightingale. A meeting between us is about the last thing the doctor would desire.”
“That may be true,” admitted Markham. “But don’t forget that he may have been up to something Monday night wholly unconnected with the murder, that he simply doesn’t want known.”
“Quite—quite. And yet, nearly every one who knew the Canary seems to have selected Monday night for the indulgence of sub-rosa peccadilloes. It’s a bit thick, what? Skeel tries to make us believe he was immersed in Khun Khan. Cleaver was—if you take his word for it—touring the countryside in Jersey’s lake district. Lindquist wants us to picture him as comforting the afflicted. And Mannix, I happen to know, has gone to some trouble to build up an alibi in case we get nosey. All of ’em, in fact, were doing something they don’t want us to know about. Now, what was it? And why did they, of one accord, select the night of the murder for mysterious affairs which they don’t dare mention, even to clear themselves of suspicion? Was there an invasion of efreets in the city that night? Was there a curse on the world, driving men to dark bawdy deeds? Was there Black Magic abroad? I think not.”
“I’m laying my money on Skeel,” declared Heath stubbornly. “I know a professional job when I see it. And you can’t get away from those finger-prints and the Professor’s report on the chisel.”