“I hardly see the necessity. No one knows who her escort was last evening; and since he obviously had nothing to do with the crime, what’s to be gained by dragging him into it? He told me the whole story, and offered to stay in the city as long as I wanted him to.”

“I infer, from the cloud of disappointment that enveloped you when you returned just now, that his story held nothing hopeful for you in the way of clues.”

“No,” Markham admitted. “The girl apparently never spoke to him of her intimate affairs; and he couldn’t give me a single helpful suggestion. His account of what happened last night agreed perfectly with Jessup’s. He called for the girl at seven, brought her home at about eleven, stayed with her half an hour or so, and then left her. When he heard her call for help he was frightened, but on being assured by her there was nothing wrong, he concluded she had dozed off into a nightmare, and thought no more of it. He drove direct to the club here, arriving about ten minutes to twelve. Judge Redfern, who saw him descend from the taxi, insisted on his coming up-stairs and playing poker with some men who were waiting in the Judge’s rooms for him. They played until three o’clock this morning.”

“Your Long Island Don Juan has certainly not supplied you with any footprints in the snow.”

“Anyway, his coming forward at this time closes one line of inquiry over which we might have wasted considerable time.”

“If many more lines of inquiry are closed,” remarked Vance dryly, “you’ll be in a distressin’ dilemma, don’t y’ know.”

“There are enough still open to keep me busy,” said Markham, pushing back his plate and calling for the check. He rose; then pausing, regarded Vance meditatingly. “Are you sufficiently interested to want to come along?”

“Eh, what? My word! . . . Charmed, I’m sure. But, I say, sit down just a moment—there’s a good fellow!—till I finish my coffee.”

I was considerably astonished at Vance’s ready acceptance, careless and bantering though it was, for there was an exhibition of old Chinese prints at the Montross Galleries that afternoon, which he had planned to attend. A Riokai and a Moyeki, said to be very fine examples of Sung painting, were to be shown; and Vance was particularly eager to acquire them for his collection.

We rode with Markham to the Criminal Courts building and, entering by the Franklin Street door, took the private elevator to the District Attorney’s spacious but dingy private office which overlooked the gray-stone ramparts of the Tombs. Vance seated himself in one of the heavy leather-upholstered chairs near the carved oak table on the right of the desk, and lighted a cigarette with an air of cynical amusement.