"Ah, mynheer, it is a sad case, but I have waited here too long. I am going to Leyden to see the great Dr. Boekman."

"Dr. Boekman!" exclaimed Peter in astonishment.

"Yes, mynheer, and I have not a moment to lose. Good day!"

"Stay, I am going that way. Come, my lads! Shall we return to Haarlem!"

"Yes," cried the boys, eagerly--and off they started.

"Now," said Peter, drawing near Hans, both skimming the ice so easily and lightly as they skated on together that they seemed scarcely conscious of moving. "We are going to stop at Leyden, and if you are going there only with a message to Dr. Boekman, cannot I do the errand for you? The boys may be too tired to skate so far today, but I will promise to see him early tomorrow if he is to be found in the city."

"Ah, mynheer, that would be serving me indeed; it is not the distance I dread but leaving my mother so long."

"Is she ill?"

"No, mynheer. It is the father. You may have heard it, how he has been without wit for many a year--ever since the great Schlossen Mill was built; but his body has been well and strong. Last night the mother knelt upon the hearth to blow the peat (it is his only delight to sit and watch the live embers, and she will blow them into a blaze every hour of the day to please him). Before she could stir, he sprang upon her like a giant and held her close to the fire, all the time laughing and shaking his head. I was on the canal, but I heard the mother scream and ran to her. The father had never loosened his hold, and her gown was smoking. I tried to deaden the fire, but with one hand he pushed me off. There was no water in the cottage or I could have done better, and all that time he laughed--such a terrible laugh, mynheer, hardly a sound, but all in his face. I tried to pull her away, but that only made it worse. Then--it was dreadful, but could I see the mother burn? I beat him--beat him with a stool. He tossed me away. The gown was on fire.! I WOULD put it out. I can't remember well after that. I found myself upon the floor, and the mother was praying. It seemed to me that she was in a blaze, and all the while I could hear that laugh. Gretel flew to the closet and filled a porringer with the food he liked and put it upon the floor. Then, mynheer, he left the mother and crawled to it like a little child. She was not burned, only a part of her clothing. Ah, how kind she was to him all night, watching and tending him. He slept in a high fever, with his hands pressed to his head. The mother says he has done that so much of late, as though he felt pain there. Ah, mynheer, I did not mean to tell you. If the father was himself, he would not harm even a kitten."