The shocked and astounded boys sat for a few moments in the gallery surrounding one of the huge dance pavilions where hilarity was at its height. The babel of incongruous noises beat all around them, but every now and then during a momentary lull in the clamor, they were conscious of a subdued conversation going on at an adjacent table.

The four men who sat there were neither noisy nor bent on amusement. That was plain. One was of gigantic physique and wore a huge black, bristly beard. One was short and unwholesomely fat. He had pouches under his wicked little pig’s eyes and his skin was blotchy. On his one hand three rings set with magnificent jewels sparkled. The third man was evidently from a different social class, for his hands were stubby, with black-rimmed finger nails and a loose, brutal mouth. The fourth man at the table sat with his back to the boys and wore a cape pulled high up so as almost completely to muffle his face. They all were leaning with heads close together over the table, scarcely having tasted the wine in their glasses.

Ned, who sat nearest to them, at one time heard the little fat man with the rings, saying:

“... best done as you say. To-morrow night I know from His Excellency the Grand Chancellor that A Certain Distinguished Personage will remove for the week-end to the imperial chateau of Schoenbrunn. That is only fifty-five minutes run by motor car from the Hofburg and certainly we can——”

The blare of music beneath the gallery as the giddy dance resumed, drowned his further utterance. By and by, though, Ned again caught a disjointed phrase or two:

“... only a guard of ten Hussars ... servants in the chateau all bribed. We’re sure of them ... he sleeps ordinarily in that suite in the southwest wing, easily reached by a ladder against the wall.... No! no! Don’t use your knife, Ottaker, you fool! He is so old and feeble that a good minute’s grip on his windpipe will finish him!”

“And the Lerchenfeld cathedral chimes will go ‘Ding, dong, ding! Ding, dong, ding! Franz Joseph dead! Franz Joseph——’”

Both the fat little man and he of the enveloping cape swung quickly around and eyed the near-by boys sharply. Ned met their scrutiny innocently enough.

The iron jaw and full eyes of the man in the cloak impressed themselves indelibly upon his memory.

“Huh!” grunted the fat man, as he turned, back to his companions.