Thad was an orphan, living with an uncle, a quaint old man whom everyone knew as “Daddy.” Acting from information that had been received in a round-about way, the leader of the scout patrol had organized an expedition to go South during the unexpected vacation, to look for a certain man who had once worked for his widowed mother, and was suspected of having been concerned in the mysterious disappearance of Thad’s little sister, Pauline, some years back.

The boys had carried this enterprise through to a successful termination; and after meeting with many thrilling, likewise comical adventures, had actually traced this man, and managed to recover the child; who was now a happy inmate of the Brewster home, the pride of old Daddy’s heart.

Judging from the numerous burdens with which the eight boys were weighted down it would seem that they must be in heavy marching order, after the manner of troops afield. Each fellow carried a blanket, folded so as to hang from his shoulder, and with the two ends secured under the other arm. Besides, he had a haversack that looked as though it might contain more or less food and extra clothing.

Giraffe also sported a frying-pan of generous dimensions; another scout carried a coffee pot; and doubtless the necessary tin cups, knives, forks, platters and spoons would be forthcoming whenever needed.

The convenient log which served the boys as a seat lay close to the road along which they had been tramping for hours that day, making inquiries whenever a chance offered, and picking up clews after the fashion of real scouts.

As the reason for their coming to this part of the country has everything to do with our story, it had better be explained before we follow Thad and his chums any further along the rather muddy road that led across country to the Susquehanna River.

Just a couple of days before the coming of the Easter holidays Thad had been asked over the ’phone to come and see Judge Whittaker, one of the most respected citizens of Cranford. Wondering what the strange request could mean, the patrol leader had immediately complied, after school that same afternoon.

He heard a most remarkable thing, and one that thrilled his nerves as they had not been stirred for many a day. The Judge first of all told him that he had long observed the doings of the scouts with growing admiration, and finding himself in need of assistance of a peculiar order, made bold to call upon Thad to help him.

Shorn of all unnecessary particulars, it would seem that the Judge, obeying a whim which he now called the height of foolishness, and while waiting for a new safe to be delivered from New York to take the place of the one that had to be opened by an expert because the time-lock had gone wrong, had actually sewed a very valuable paper in the red lining of an old faded blue coat which was hanging in his closet, and which he kept as a memento of the time his only son served in the engineer corps of the army.

It seemed that as the Judge had married again, his wife was not very fond of seeing that old blue army overcoat with the red lining hanging around; and thinking it a useless incumbrance, she had figured that it would be doing more good shielding some poor tramp from the cold than just tempting the moths in that closet.