Rosa hid her face in her hands with a movement of despair.

“His name is Cornelius van Baerle,” said Boxtel, “and he is godson of that villain Cornelius de Witt.”

The Prince gave a start, his generally quiet eye flashed, and a death-like paleness spread over his impassible features.

He went up to Rosa, and with his finger, gave her a sign to remove her hands from her face.

Rosa obeyed, as if under mesmeric influence, without having seen the sign.

“It was, then to follow this man that you came to me at Leyden to solicit for the transfer of your father?”

Rosa hung down her head, and, nearly choking, said,—

“Yes, your Highness.”

“Go on,” said the Prince to Boxtel.

“I have nothing more to say,” Isaac continued. “Your Highness knows all. But there is one thing which I did not intend to say, because I did not wish to make this girl blush for her ingratitude. I came to Loewestein because I had business there. On this occasion I made the acquaintance of old Gryphus, and, falling in love with his daughter, made an offer of marriage to her; and, not being rich, I committed the imprudence of mentioning to them my prospect of gaining a hundred thousand guilders, in proof of which I showed to them the black tulip. Her lover having himself made a show at Dort of cultivating tulips to hide his political intrigues, they now plotted together for my ruin. On the eve of the day when the flower was expected to open, the tulip was taken away by this young woman. She carried it to her room, from which I had the good luck to recover it at the very moment when she had the impudence to despatch a messenger to announce to the members of the Horticultural Society that she had produced the grand black tulip. But she did not stop there. There is no doubt that, during the few hours which she kept the flower in her room, she showed it to some persons whom she may now call as witnesses. But, fortunately, your Highness has now been warned against this impostor and her witnesses.”