An Invasion

"I, on the contrary, am a good citizen, as I am not charged with anything in the world, as I am as free as the air of heaven."

"If, therefore, Cornelius de Witt is a bad citizen,--of which there can be no doubt, as he is charged with high treason, and arrested,--his accomplice, Cornelius van Baerle, is no less a bad citizen than himself.

"And, as I am a good citizen, and as it is the duty of every good citizen to inform against the bad ones, it is my duty to inform against Cornelius van Baerle."

Specious as this mode of reasoning might sound, it would not perhaps have taken so complete a hold of Boxtel, nor would he perhaps have yielded to the mere desire of vengeance which was gnawing at his heart, had not the demon of envy been joined with that of cupidity.

Boxtel was quite aware of the progress which Van Baerle had made towards producing the grand black tulip.

Dr. Cornelius, notwithstanding all his modesty, had not been able to hide from his most intimate friends that he was all but certain to win, in the year of grace 1673, the prize of a hundred thousand guilders offered by the Horticultural Society of Haarlem.

It was just this certainty of Cornelius van Baerle that caused the fever which raged in the heart of Isaac Boxtel.

If Cornelius should be arrested there would necessarily be a great upset in his house, and during the night after his arrest no one would think of keeping watch over the tulips in his garden.