Acting on such principles of parental discipline as these, Mr. Thorpe conscientiously believed that he had done his duty, when he had at last forced his son into the merchant’s office. He had, in truth, perpetrated one of the most serious mistakes which it is possible for a wrong-headed father to commit. For once, Zack had not exaggerated in saying that his aversion to employment in a counting-house amounted to absolute horror. His physical peculiarities, and the habits which they had entailed on him from boyhood, made life in the open air, and the constant use of his hardy thews and sinews a constitutional necessity. He felt--and there was no self-delusion in the feeling--that he should mope and pine, like a wild animal in a cage, under confinement in an office, only varied from morning to evening by commercial walking expeditions of a miserable mile or two in close and crowded streets. These forebodings--to say nothing of his natural yearning towards adventure, change of scene, and exhilarating bodily exertion--would have been sufficient of themselves to have decided him to leave his home, and battle his way through the world (he cared not where or how, so long as he battled it freely), but for one consideration. Reckless as he was, that consideration stayed his feet on the brink of a sacred threshold which he dared not pass, perhaps to leave it behind him for ever--the threshold of his mother’s door. Strangely as it expressed itself, and irregularly as it influenced his conduct, Zack’s love for his mother was yet, in its own nature, a beautiful and admirable element in his character; full of promise for the future, if his father had been able to discover it, and had been wise enough to be guided by the discovery. As to outward expression, the lad’s fondness for Mrs. Thorpe was a wild, boisterous, inconsiderate, unsentimental fondness, noisily in harmony with his thoughtless, rattle-pated disposition. It swayed him by fits and starts; influencing him nobly to patience and forbearance at one time; abandoning him, to all appearance, at another. But it was genuine, ineradicable fondness, nevertheless--however often heedlessness and temptation might overpower the still small voice in which its impulses spoke to his conscience, and pleaded with his heart. Among other unlucky results of Mr. Thorpe’s conscientious imprisonment of his son in a merchant’s office, was the vast increase which Zack’s commercial penance produced in his natural appetite for the amusements and dissipations of the town. After nine hours of the most ungrateful daily labor that could well have been inflicted on him, the sight of play-bills and other wayside advertisements of places of public recreation appealed to him on his way home, with irresistible fascination.