However, the novice succeeded in gaining possession of the two cubes, and he replaced them in the set.

Dingo advanced again, seized again the same two letters, and carried them to a distance. This time its two paws lay on them; it seemed decided to guard them at all hazards. As to the other letters of the alphabet, it did not seem as if it had any knowledge of them.

"That is a curious thing," said Mrs. Weldon.

"It is, in fact, very singular," replied Captain Hull, who was looking attentively at the two letters.

"S. V.," said Mrs. Weldon.

"S. V.," repeated Captain Hull. "But those are precisely the letters which are on Dingo's collar!"

Then, all at once, turning to the old black: "Tom," he asked, "have you not told me that this dog only belonged to the captain of the 'Waldeck' for a short time?"

"In fact, sir," replied Tom, "Dingo was only on board two years at the most."

"And have you not added that the captain of the 'Waldeck' had picked up this dog on the western coast of Africa?"

"Yes, sir, in the neighborhood of the mouth of the Congo. I have often heard the captain say so."