Curtis was toying with his fourth meal since sunset, and admitted that he was ready for anything rather than spaghetti à la tomato.

"If there's enough varieties of Hungarians and Slavs in the street I can start a riot in less than no time," confided Devar.

"How?" asked the detective.

"This way," and Devar began to sing. He owned a light tenor, clear and melodious, and the air had a curiously barbaric lilt which, musically considered, was reminiscent of the gypsies' chorus in "The Bohemian Girl." But the words were couched in a strange tongue, sonorous and full voweled, and the Hungarians in the room became greatly stirred when it dawned on them that a semi-intoxicated American stoker was chanting a forbidden national melody. Far better than he knew, he sounded uncharted deeps in human nature. Andrew Fletcher of Saltoun stated an eternal truth when he wrote to the Marquis of Montrose: "I know a very wise man that believed that if a man were permitted to make all the ballads he need not care who should make the laws of a nation." Before Devar had finished the first verse people from the street were crowding in through the open door, and flashing eyes and strange ejaculations showed that the Czechs thought they were witnessing a miracle. As the second verse rang out, vibrant and challenging, the mob, eager to share in the interior excitement, rushed the entrance. Many could hear, but few could see, and all were roused to exaltation by a melody the public singing of which would have brought imprisonment or death in their own land.

"Now for it!" roared Steingall, and over went table and crockery with a crash. Of course, this added to the turmoil, and some women in the café began to shriek. Not knowing in the least what was causing the commotion, the crowd surged into that particular corner, and Steingall, apparently frenzied, sprang to the window, opened it, and said to Count Vassilan:

"Get out, quick! They'll be knifing you in a minute!"

The Italian girl screamed at that, so she was lifted into the safety of the street. Vassilan followed, or rather was practically thrown out, and the young Hungarian could have climbed after him nimbly enough had not Curtis insisted on helping him, and, pinioning his arms, forced him head foremost over the sill, but not so rapidly that Steingall should be unable to "go through him" scientifically for the note.

"Be off, you two! Take the car and go home!"

It was no time for argument. Both Curtis and Devar read into Steingall's muttered injunction the belief that the hunt had ended for the night. They knew that the detectives could take care of themselves, and they had scrambled through the window and made off swiftly in the direction of the waiting automobile before the despoiled Hungarian regained his feet. The hour yet wanted nearly ten minutes of being one o'clock, so the chauffeur had not budged from his post in the park. Devar told him to start the engine, and be ready to jump off without delay. Then they waited, and watched the corner of the square intersected by East Broadway, but neither Steingall nor Clancy appeared, so they judged it best to obey orders, and make for the Police Headquarters. There they washed and resumed their own clothes, an operation which consumed another quarter of an hour. Still there was no sign of the detectives, and they decided, somewhat reluctantly, to do as they had been bidden, and go home.

"What sort of witches' shibboleth was that which you brought off in Siegelman's?" asked Curtis, while the car was humming placidly up Broadway.