"Was he a relation of the duke?" Nina whispered, aghast at the resemblance.

"Who, child?" asked the princess.

"Rodrigo Borgia."

"No one knows. Hush!"

"But why the throne? Were the Scorpas kings—or what?"

"Before the secular unification of Italy," the princess answered, "the Holy Fathers used to visit the Scorpa cardinals. There has always been a Scorpa among the cardinals. The one now is Monsignore Gamba del Sati. Del Sati is one of the numerous names of the Scorpa family."

Nina cast another glance at the portrait of Alexander VI. The sinister face was so like the present duke's that it made her shudder, and her imagination at once pictured slaves and prisoners being dragged along these same stone floors. At the end of ten or twelve rooms, each gloomy, yet over-rich with architectural adornments and modern elaboration, two lackeys lifted the hangings covering the last doorway, and announced:

"Sua Eccellenza la Principessa Sansevero!"

"Messa Randolph."

The Duchess Scorpa was very gracious to the American heiress. But, unaccountably, Nina had a strangled feeling, as though she were a bird and had been enticed into a cage. It was a ridiculous notion, for, even following out the simile, the door was open, she knew; and, for that matter, the bars were too far apart to hold her, as soon as she should choose to slip through. But the feeling of the cage was oppressively vivid, and she clung as closely to her aunt's side as she could. Friends of the princess rather monopolized her, however, while the duchess neglected her other guests to talk to Nina. To add to the girl's distress, the duke, stroking his heavy chin with his fat hand, stood beside her chair with what seemed a proprietary air, and a smile that was intolerable. "Well, my guests," his manner seemed to say, "how do you like my choice? She is not all that I might ask for, but she will do—quite nicely."