Half an hour later, having excused himself to Miss Carleton, Mr. Whitney hastened to the grove, where he found the detective sauntering up and down the winding walk, his hands behind him in a reflective mood, absorbed in thought and in the enjoyment of a fine cigar.  He nodded pleasantly as the attorney approached.

“Going to be at liberty for some time?” he inquired, at the same time extending his cigar-case.

“Yes, for any length of time you please; it’s a relief to get away from those egotists.”

“H’m!” said Merrick, as he returned the cigar-case to his pocket after the attorney had helped himself; “I didn’t think that you looked particularly anxious to be relieved of your company when I saw you.  I really felt considerable delicacy about speaking as I did.”

“Oh, to the deuce with your nonsense!” the attorney replied, his cheek flushing as he lighted his cigar.  “If you had listened to the twaddle that I have all day, you would be glad to talk to almost any one for a change.”

“In that event, perhaps you won’t mind talking to me for a while.  Well, suppose we go down to the stables, to the coachman’s room; he is probably with his best girl by this time, and we will be safe from interruption or eavesdroppers.”

“That suits me all right so long as Ralph Mainwaring doesn’t think of looking for me there.  That man makes me exceedingly weary!”

“Anxious to secure the property according to the terms of that will, I suppose.”

“Anxious!  He is perfectly insane on the subject; he can’t talk of anything else, and he’ll move heaven and earth to accomplish it, too, if necessary.”

“Don’t anticipate any difficulty, do you?”

“None whatever, unless from that woman; there’s no knowing to what she may resort.  It will only be necessary to prove that the will, if not in existence at the death of the testator, was fraudulently destroyed prior thereto, and I think we have a pretty clear case.  By George, Merrick!” suddenly exclaimed the attorney in a different tone, as he paused on the way to the stables.  “I hadn’t thought of it before, but there’s one thing ought to be done; we should have this lake dragged at once.”

Merrick raised his eyebrows in mute inquiry.

“To find whatever Brown threw in there, you know; it might furnish us with an almighty important clue.”

“H’m! might be a good idea,” Merrick remarked, thoughtfully.

“Of course it would!  I tell you, Merrick, I was cut out for a detective myself, and I’m pretty good for an amateur, now.”

“Haven’t a doubt of it,” was the quiet response, and the pair resumed their walk.  Both were soon comfortably seated in the coachman’s room, their chairs tilted at just the right angle before a large double window, facing the sunset.  Both smoked in silence for a few moments, each waiting for the other to speak.

“Well, my friend, what do you know?” inquired the detective, while he watched the delicate spirals of blue smoke as they diffused themselves in the golden haze of the sunlight.