“I confess,” replied Legrand, “that the matter still wears a serious aspect, when regarded with a casual glance.  My first endeavor was to divide the sentence into the natural division intended by the cryptographist.

“You mean, to punctuate it?”

“Something of that kind.”

“But how was it possible to effect this?”

“I reflected that it had been a point with the writer to run his words together without division, so as to increase the difficulty of solution.  Now, a not over-acute man, in pursuing such an object, would be nearly certain to overdo the matter.  When, in the course of his composition, he arrived at a break in his subject which would naturally require a pause, or a point, he would be exceedingly apt to run his characters, at this place, more than usually close together.  If you will observe the Ms., in the present instance, you will easily detect five such cases of unusual crowding.  Acting on this hint, I made the division thus: 

“’A good glass in the Bishop’s hostel in the Devil’s seat—­twenty-one degrees and thirteen minutes—­north-east and by north—­main branch seventh limb east side—­shoot from the left eye of the death’s-head—­a bee-line from the tree through the shot fifty feet out.’”

“Even this division,” said I, “leaves me still in the dark.”

“It left me also in the dark,” replied Legrand, “for a few days; during which I made diligent inquiry, in the neighborhood of Sullivan’s Island, for any building which went by the name of the ‘Bishop’s Hotel’; for, of course, I dropped the obsolete word ‘hostel.’  Gaining no information on the subject, I was on the point of extending my sphere of search, and proceeding in a more systematic manner, when one morning it entered into my head, quite suddenly, that this ‘Bishop’s Hostel’ might have some reference to an old family, of the name of Bessop, which, time out of mind, had held possession of an ancient manor-house, about four miles to the northward of the island.  I accordingly went over to the plantation, and reinstituted my inquiries among the older negroes of the place.  At length one of the most aged of the women said that she had heard of such a place as Bessop’s Castle, and thought that she could guide me to it, but that it was not a castle, nor a tavern, but a high rock.

“I offered to pay her well for her trouble, and, after some demur, she consented to accompany me to the spot.  We found it without much difficulty, when, dismissing her, I proceeded to examine the place.  The ‘castle’ consisted of an irregular assemblage of cliffs and rocks—­one of the latter being quite remarkable for its height as well as for its insulated and artificial appearance.  I clambered to its apex, and then felt much at a loss as to what should be next done.

“While I was busied in reflection, my eyes fell on a narrow ledge in the eastern face of the rock, perhaps a yard below the summit upon which I stood.  This ledge projected about eighteen inches, and was not more than a foot wide, while a niche in the cliff just above it gave it a rude resemblance to one of the hollow-backed chairs used by our ancestors.  I made no doubt that here was the ‘devil’s seat’ alluded to in the Ms., and now I seemed to grasp the full secret of the riddle.