"How do you account for the letter, then?"

"I have thought—mind, it is only a guess—that Mrs. Hardwick may have got somebody to write it for her."

"It is very singular," murmured Martha.

"What is singular?"

"Why, the very same thought has occurred to me. Somehow, I can't help feeling a little distrustful of Mrs. Hardwick, though perhaps unjustly. What object can she have in getting possession of the child?"

"That I can't conjecture; but I have come to one determination."

"What is that?"

"Unless we learn something of Ida within a week from the time she left here, I shall go on to Philadelphia, or else send Jack, and endeavor to get track of her."

[!-- CH21 --]

CHAPTER XXI