There was van Dyk, a secretary of Bleiswyk, equally active and dangerous, and as lean and hungry as Korenwinder was fat.  Stoutenburg, besides other rewards, had promised him a cornetcy of cavalry, should their plans be successful.  And there was the brother-in-law of Slatius, one Cornelis Gerritaen, a joiner by trade, living at Rotterdam, who made himself very useful in all the details of the conspiracy.

For the plot was now arranged, the men just mentioned being its active agents and in constant communication with Stoutenburg.

Korenwinder and van Dyk in the last days of December 1622 drew up a scheme on paper, which was submitted to their chief and met with his approval.  The document began with a violent invective against the crimes and tyranny of the Stadholder, demonstrated the necessity of a general change in the government, and of getting rid of Maurice as an indispensable preliminary, and laid down the means and method of doing this deed.

The Prince was in the daily habit of driving, unattended by his body-guard, to Ryswyk, about two miles from the Hague.  It would not be difficult for a determined band of men divided into two parties to set upon him between the stables and his coach, either when alighting from or about to enter it—­the one party to kill him while the other protected the retreat of the assassins, and beat down such defence as the few lackeys of the Stadholder could offer.

The scheme, thus mapped out, was submitted to Stoutenburg, who gave it his approval after suggesting a few amendments.  The document was then burnt.  It was estimated that twenty men would be needed for the job, and that to pay them handsomely would require about 6000 guilders.

The expenses and other details of the infamous plot were discussed as calmly as if it had been an industrial or commercial speculation.  But 6000 guilders was an immense sum to raise, and the Seigneur de Stoutenburg was a beggar.  His associates were as forlorn as himself, but his brother-in-law, the ex-Ambassador van der Myle, was living at Beverwyk under the supervision of the police, his property not having been confiscated.  Stoutenburg paid him a visit, accompanied by the Reverend Slatius, in hopes of getting funds from him, but at the first obscure hint of the infamous design van der Myle faced them with such looks, gestures, and words of disgust and indignation that the murderous couple recoiled, the son of Barneveld saying to the expreacher:  “Let us be off, Slaet,’tis a mere cur.  Nothing is to be made of him.”

The other son of Barneveld, the Seigneur de Groeneveld, had means and credit.  His brother had darkly hinted to him the necessity of getting rid of Maurice, and tried to draw him into the plot.  Groeneveld, more unstable than water, neither repelled nor encouraged these advances.  He joined in many conversations with Stoutenburg, van Dyk, and Korenwinder, but always weakly affected not to know what they were driving at.  “When we talk of business,” said van Dyk to him one day, “you are always turning off from us and from the subject.  You had better remain.”  Many anonymous letters were sent to him, calling on him to strike for vengeance on the murderer of his father, and for the redemption of his native land and the Remonstrant religion from foul oppression.