“Watch him,” was the laconic but sensible reply.

“But the cunning fellow has committed his depredations when he has not been seen.”

“Plant some temptation for him, as now, and then place three or four persons to watch where he takes it.”

“A very good idea, and I will follow it out now, if you please.

“I should like very much, for my curiosity is now deeply excited. Ah! Master Charles, you are a boy of an excellent temper to bear so well as you have done with my petulance and hasty conclusions.”

“Now,” said my father, “I will place my gold pencil-case on the spot where you placed your silver one, and then wait the return of the sly old bird.”

This was done, and it was not many minutes before the bird entered, no doubt to see if there were any more bright things to be taken away. What! another pencil-case for Jack! No one was in the room but the doctor, who this time pretended to be deeply engaged in a book, as I had before done, while I and my father planted ourselves in unseen places outside the room. The bird was not slow in accomplishing his theft, and as quickly hopped out of the library with the pencil-case.

“Seeing is believing!” exclaimed the doctor, closing the book with a loud bang. “I wouldn’t keep a magpie for the world.”

Then he made his way to the courtyard, where I and my father had stationed ourselves. We had not been long here before the bird came hopping along with the pencil-case in his beak, and he flew to the top of a loft.

The doctor’s countenance expressed indescribable surprise, while I and my father laughed heartily as Jack flew up to his hiding place.