Francesco looked at him coldly.

"I am here at the request of Madonna Ilaria," he replied quietly.

"Indeed!" sneered the Frangipani, advancing a step closer. "Madonna Ilaria did not hint that she preferred the society of a marplot to that of a Frangipani!"

Francesco made an impetuous step forward, feeling for his dagger. But Ilaria caught his arm and clung to it. The two were faintly visible in the starlight.

The Frangipani regarded them for a moment with a contemptuous smile.

"I crave your pardon," he then turned with an ironical bow to the girl. "I feared Messer Villani would be too fatigued after his journey in quest of an ancestor!"

Francesco had turned pale at this palpable insult. There was no doubt that the Frangipani had spied upon him for reasons not difficult to surmise. But ere he could carry out his intent, but too plainly revealed in his set features, Ilaria had interposed herself between the two.

"Leave us!" she turned to the Frangipani with a scorn in her voice that caused the latter to start, while she clung to Francesco's arm, hardly less pale than he.

Raniero Frangipani regarded them for a moment in silence, tapped with his foot, like one to whom a new idea has come, then with a long low sound, very much like a snarl, he vanished in the gloom.