"Turn around, Doran," said Ferrars sharply, and then in a lower tone to Hilda, "I shall go to the city to-night."

When Hilda reached her room, at the close of the school, she found this letter awaiting her, "left," Mrs. Marcy said, "by her cousin":

"Dear Cousin,—Even if you had been disengaged, I could have told you nothing except that what I have learned to-day impels me to look a little more closely to the other end of my line. For there is another end.

"Now that I shall have the two men on duty in the south end of the county, and with the doctor and Doran alert in G——, not to mention yourself, I can go where I have felt that I should be for the past week or more. Will you keep me informed of the slightest detail that in any way concerns our case? And will you do me one individual favour? I trust Mrs. J—— may not leave this place until I see you all again, but should she do so, will you inform me of her intention at once? You see that I am quite frank. I should deeply regret it, if she went away before I could see her again. Destroy this.

"Yours hopefully,
"Ferrars."


CHAPTER XV. REBELLION.

May had passed, and June roses were in late bloom. The city was horrid with the warm sun-filtered air after a summer shower, and Robert Brierly looked pale and languid as he stepped from an elevator, in one of the great department houses wherein Ferrars had his bachelor quarters, and walked slowly to his door.

Possibly it was the warmth of a very warm June, or there may have been other causes. At any rate Frank Ferrars' face wore an almost haggard look in spite of the welcoming smile with which he held out his hand to greet his friend, for friends these two had grown to be during the past weeks. Friends warm and true and strong, in spite of the fact that the mystery surrounding the death of Charlie Brierly remained as much of a mystery as on the day when foolish Peter Kramer led the detective to the scene of his ghostly encounter.

There were dark lines beneath the keen gray eyes, which, Rob Brierly had declared, "compelled a man's trust," and the smooth, shaven cheek was almost hectic, symptoms which, in Ferrars, denoted, among other things, loss of sleep.