Then Cornelius revolved in his mind all those stratagems resorted to by unfortunate prisoners.
He had thought of an attempt to escape, a thing which never entered his head whilst he could see Rosa every day; but the more he thought of it, the more clearly he saw the impracticability of such an attempt. He was one of those choice spirits who abhor everything that is common, and who often lose a good chance through not taking the way of the vulgar, that high road of mediocrity which leads to everything.
"How is it possible," said Cornelius to himself, "that I should escape from Loewestein, as Grotius has done the same thing before me? Has not every precaution been taken since? Are not the windows barred? Are not the doors of double and even of treble strength, and the sentinels ten times more watchful? And have not I, besides all this, an Argus so much the more dangerous as he has the keen eyes of hatred? Finally, is there not one fact which takes away all my spirit, I mean Rosa's absence? But suppose I should waste ten years of my life in making a file to file off my bars, or in braiding cords to let myself down from the window, or in sticking wings on my shoulders to fly, like Daedalus? But luck is against me now. The file would get dull, the rope would break, or my wings would melt in the sun; I should surely kill myself, I should be picked up maimed and crippled; I should be labelled, and put on exhibition in the museum at the Hague between the blood-stained doublet of William the Taciturn and the female walrus captured at Stavesen, and the only result of my enterprise will have been to procure me a place among the curiosities of Holland.
"But no; and it is much better so. Some fine day Gryphus will commit some atrocity. I am losing my patience, since I have lost the joy and company of Rosa, and especially since I have lost my tulip. Undoubtedly, some day or other Gryphus will attack me in a manner painful to my self-respect, or to my love, or even threaten my personal safety. I don't know how it is, but since my imprisonment I feel a strange and almost irresistible pugnacity. Well, I shall get at the throat of that old villain, and strangle him."
Cornelius at these words stopped for a moment, biting his lips and staring out before him; then, eagerly returning to an idea which seemed to possess a strange fascination for him, he continued,-"Well, and once having strangled him, why should I not take his keys from him, why not go down the stairs as if I had done the most virtuous action, why not go and fetch Rosa from her room, why not tell her all, and jump from her window into the Waal? I am expert enough as a swimmer to save both of us. Rosa,--but, oh Heaven, Gryphus is her father! Whatever may be her affection for me, she will never approve of my having strangled her father, brutal and malicious as he has been.