"Oh!" A light began to break in on the fun-loving Rover's mind. "Do you think I did this?"
"Didn't you?"
"Of course he did!" fumed Professor Sharp. "And now he is willing to laugh over his dastardly work!"
"I didn't do it, sir," said Tom firmly.
"You are certain?" It was the head of the college who asked the question.
"Yes, sir. I never saw that picture before."
"But I have the proof against you!" fairly shouted Abner Sharp. "It is useless for you to deny your guilt."
"I say I am not guilty."
"Isn't this your box, Rover?"
As Professor Sharp uttered these words he brought to light a German silver case which Tom had picked up in a curiosity shop in New York. The case had his name engraved on it, and contained pencils, crayons, and other things for drawing.