For from Greely Square to Eighth Street, from the cork room of Koster & Bial's to the purlieus of old Clinton Place, all the "off color" men and women of New York's "fly" circles knew and feared the steady eyes gleaming through the cerulean lenses.

"He's a deep one, the Professor," grunted the Hanoverian barkeeper. "Vat a lot 'e knows!" The Teuton rinsed his beer glasses with a vicious twirl as he exclaimed: "Like as not, choost so like, he's up to some new devilment! Niemand know vere 'e hangs out! He's a wonder, he is, dat same Fritz!"

But the pharmacist lost all his sedateness as he sprang out of the crosstown car after his transfer at Fourteenth Street and Fourth Avenue.

He was the nimblest crosser of the busy corner, and then gazed anxiously up and down the street, in front of the Restaurant Bavaria.

Wasting but a moment he smartly entered the café and then, with an air of proprietorship, entered a curtain-shaded alcove.

The waiter silently placed the carte du jour before him, and merely shook his head when Braun sharply demanded, "Any one here for me?"

A luxurious dinner was ordered, and the silent man was busied scanning the convives when Emil Einstein, cautiously entering without haste, furtively regarded all the diners.

They were the better class of artists—musical virtuosos, and floating foreigners of the Teutonic business circles of lower New York.

Frank, pleasure-loving continental women mingled freely with these materialistic Romeos, who preferred the comforting cuisine to the fiery and seductive cocktails of "The Opera" on the corner.

The artful Einstein was warily assuring himself that he was quite unknown to the convives before making his report to his real master and evil genius. For, young as he was, Emil Einstein well knew that the tyrant master, who had been his mother's cruel lover, might some day lure him on to the electric chair.