Before rejoining the waiting trio in the office, Steingall was interviewing the youth in charge of the tobacco and current literature department.

Such story as the boy had to tell was hardly in favor of Curtis.

"The gentleman came here to buy some stamps, and he and a man who was reading in the café said something to each other in a foreign lingo," ran the recital. "No, I don't think I would recognize French if I heard it—American is good enough for me—but there was no argument, nothing in the shape of a quarrel. The Englishman spoke twice, and the other fellar three times."

"Mr. Curtis is an American," Steingall explained.

"Well, he doesn't talk like one, anyhow," pronounced young New York—in this instance, of a pronounced Jewish type—which is perhaps the most dogmatic juvenility extant.

Then Curtis entered. He glanced around, and seemed to be gratified by the discovery that the hotel had lost its inquisitive crowd. He did not realize that every newspaper office in New York was alive with conjecture of which he was the chief figure, and that telegraph and telephone were carrying his name and fame across the length and breadth of the country.

"Hello!" he said, hailing Steingall affably, "you here still? Has anything turned up with regard to those scoundrels and their automobile?"

"Not a word—about them," said the detective.

The purveyor of cigars and news was positively awe-stricken. He was aware of Steingall's repute as the "man with the microscopic eye," and he fully expected that the "sleuth's" penetrating organ had already discerned the word "murderer" branded on Curtis's shirt front.

"What time will you want me in the morning?" went on Curtis, looking in the direction of the office. He was really thinking about the mislaid key; not for an instant did he imagine that by that simple gesture he had almost eradicated from Steingall's mind the germ of doubt which events had certainly conspired to plant there.