"But he never gave it to me!" said Bert quickly.

"I am beginning to believe he did not," said the principal. "I think
we will have Danny in here."

The bully came in rather defiant, and stared boldly around at those in
the office. Mr. Tetlow resolved on a surprising plan.

"Danny," he said suddenly, "why did you put Bert's knife on the step,
and let it freeze there to make it look as though Bert had helped
place the snowball in front of the door? Why did you?"

"I--I--" stammered Danny, "I didn't--"

"Be careful now," warned the principal. "We have heard the whole
story. Jimmie has told how you promised to leave the knife with Bert,
but you did not."

Danny swallowed a lump in his throat. He was much confused, and
finally he broke down and admitted that he had been present and had
helped roll the snowball on the steps.

"But I wasn't the only one!" he exclaimed. "There was--"

"Tut Tut!" exclaimed the principal. "I want no tale-bearing. I think
those who did the trick will confess now, after I tell them what has
happened. Danny, it was very wrong of you to play such a joke, but it
was much worse to try to throw the blame on Bert by leaving his knife
there."