However, there was one evil following in the path of civilization that caused Santa Claus a vast amount of trouble before he discovered a way to overcome it. But, fortunately, it was the last trial he was forced to undergo.  
One Christmas Eve, when his reindeer had leaped to the top of a new building, Santa Claus was surprised to find that the chimney had been built much smaller than usual. But he had no time to think about it just then, so he drew in his breath and made himself as small as possible and slid down the chimney.
 
"I ought to be at the bottom by this time," he thought, as he continued to slip downward; but no fireplace of any sort met his view, and by and by he reached the very end of the chimney, which was in the cellar.
 
"This is odd!" he reflected, much puzzled by this experience. "If there is no fireplace, what on earth is the chimney good for?"
 
Then he began to climb out again, and found it hard work—the space being so small. And on his way up he noticed a thin, round pipe sticking through the side of the chimney, but could not guess what it was for.
 
Finally he reached the roof and said to the reindeer:
 
"There was no need of my going down that chimney, for I could find no fireplace through which to enter the house. I fear the children who live there must go without playthings this Christmas."
 
Then he drove on, but soon came to another new house with a small chimney. This caused Santa Claus to shake his head doubtfully, but he tried the chimney, nevertheless, and found it exactly like the other. Moreover, he nearly stuck fast in the narrow flue and tore his jacket trying to get out again; so, although he came to several such chimneys that night, he did not venture to descend any more of them.
 
"What in the world are people thinking of, to build such useless chimneys?" he exclaimed. "In all the years I have traveled with my reindeer I have never seen the like before."
 
True enough; but Santa Claus had not then discovered that stoves had been invented and were fast coming into use. When he did find it out he wondered how the builders of those houses could have so little consideration for him, when they knew very well it was his custom to climb down chimneys and enter houses by way of the fireplaces. Perhaps the men who built those houses had outgrown their own love for toys, and were indifferent whether Santa Claus called on their children or not. Whatever the explanation might be, the poor children were forced to bear the burden of grief and disappointment.
 
The following year Santa Claus found more and more of the new-fashioned chimneys that had no fireplaces, and the next year still more. The third year, so numerous had the narrow chimneys become, he even had a few toys left in his sledge that he was unable to give away, because he could not get to the children.
 
The matter had now become so serious that it worried the good man greatly, and he decided to talk it over with Kilter and Peter and Nuter and Wisk.
 
Kilter already knew something about it, for it had been his duty to run around to all the houses, just before Christmas, and gather up the notes and letters to Santa Claus that the children had written, telling what they wished put in their stockings or hung on their Christmas trees. But Kilter was a silent fellow, and seldom spoke of what he saw in the cities and villages. The others were very indignant.
 
"Those people act as if they do not wish their children to be made happy!" said sensible Peter, in a vexed tone. "The idea of shutting out such a generous friend to their little ones!"
 
"But it is my intention to make children happy whether their parents wish it or not," returned Santa Claus. "Years ago, when I first began making toys, children were even more neglected by their parents than they are now; so I have learned to pay no attention to thoughtless or selfish parents, but to consider only the longings of childhood."
 
"You are right, my master," said Nuter, the Ryl; "many children would lack a friend if you did not consider them, and try to make them happy."
 
"Then," declared the laughing Wisk, "we must abandon any thought of using these new-fashioned chimneys, but become burglars, and break into the houses some other way."
 
"What way?" asked Santa Claus.
 
"Why, walls of brick and wood and plaster are nothing to Fairies. I can easily pass through them whenever I wish, and so can Peter and Nuter and Kilter. Is it not so, comrades?"
 
"I often pass through the walls when I gather up the letters," said Kil............