"I believe that, but it is as well to know that you will be well paid."

"All right, sir, to-morrow I commence the search for the missing child, now a woman between forty and fifty."

The detective went forth, and we can here state that he with his brother spent three whole weeks searching for the missing woman, and in all that time, as Jack afterward stated, he believed he had looked on the face of almost every woman in New York, and during this strange "shadow" he encountered many very strange and remarkable experiences. He met nothing, however, that he could call a reward. He did meet many women who in a certain way possessed characteristics of feature that might have distinguished the heiress developed from a child into a woman. He visited the theaters, variety shows; he advertised for relatives of Jacob Canfield, and expected to receive answers from descendants of the old fisherman's second-hand family, if from no one else. He did receive many bogus replies, but nothing was really worth a second thought. At the end of the three weeks he did feel a little discouraged, but showed no disposition to surrender the search. He, however, became very thoughtful, and kept repeating:

"Hang it! if I only had that letter."

At last there came to him one day a singular suggestion. He was riding in a street car, and two old men met, and during the course of conversation one of them made a remark, saying:

"Well, I tell you it's sad how one will lose their memory in directions.

My memory is as strong as ever it was, and then again it plays very strange pranks--yes, very strange pranks. Do you know I will do things and then forget that I did? For instance, I will deposit a letter in a U. S. box and ten minutes afterward forget all about it."

"I have the same weakness," said the other old man; "indeed, in that direction I am bothered very frequently."

These remarks started a line of thought in our hero's mind. He remembered asking Mr. Townsend if he had ever removed the letter that had been intrusted to him from his office. Mr. Townsend had replied that he was certain he never had. Our hero recalled that he had accepted the banker's word but had never tested it, and he exclaimed:

"By ginger! here is where I have been remiss."

Our hero proceeded to Mr. Townsend's home, and after a little talk said:

"You once told me you were certain you never removed that letter from your office."

"I am certain that I never did--yes, I repeat the declaration."

"You are mistaken."

The old banker started and exclaimed in a tone of surprise:

"I am mistaken?"

"Yes, sir."

"Then you have found the letter?"

"No, but I will find it."

"You will?"

"Yes."

"Where?"

"Here in your house."

"Never."

"You are positive?"

"I cannot think it possible that I removed the letter. I once thought it possible and made a search."

"Oh, you once thought it possible?"

"Yes."

"And made a search?"

"Yes."

"And you failed to find it?"

"I did not find it.'"

"Where did you look?"

"In my private safe."

"You wish to find the letter?"

"I do."

"Then you will not object to my making a search?"

"Certainly not; I will oppose no effort to find the letter."

"Then I will make the search," said our hero.

CHAPTER IX.

A WONDERFUL SEARCH--JACK BECOMES THE SEARCHER--A STARTLING DISCOVERY--THE LONG-LOST LETTER FOUND AT LAST--A MOST REMARKABLE FEAT--THE STORY OF THE SEALED LETTER.

There came a perplexed look to the face of the banker, as he said:

"It cannot be possible that I removed that letter."

"It is not only possible, but it is probable."

"But I searched for it."

"No doubt; but, sir, while searching were you as _positive then_ as you are now that you had not removed the letter?"

"I may have been."

"You will permit me to make the search?"

"Certainly."