It is not to be supposed that during this time the family of the missing boy were idle. The mysterious disappearance of his only son filled his father's heart with anguish, and he took immediate steps to penetrate the mystery. Not only was the fullest information given to the police, but an experienced detective connected with a private agency was detailed for the search. The matter also got into the papers, and Herbert, in his Western home, little suspected that his name had already become a household word in thousands of families. Days passed, and in spite of the efforts that were being made to discover him, no clew had been obtained by Herbert's friends, either as to his whereabouts, or as to the identity of the party or parties hat had abducted him. It is needless to say that Grant heartily sympathized with the afflicted father, and was sad on his own account, for he had become warmly attached to the little boy whose instant companion he had been in his hours of leisure. The only one in the house who took the matter coolly was Mrs. Estabrook, the housekeeper. She even ventured to suggest that Herbert had run away. “What do you mean, Mrs. Estabrook?” exclaimed the father, impatiently. “You ought to know my poor boy better than that!” “Boys are a worrisome set,” returned the housekeeper, composedly. “Only last week I read in the Herald about two boys who ran away from good homes and went out to kill Indians.” “Herbert was not that kind of a boy,” said Grant. “He had no fondness for adventure.” “I have known Herbert longer than you, young man,” retorted the housekeeper, with a sneer. “It is very clear that you didn't know him as well,” said Mr. Reynolds. Mrs. Estabrook sniffed, but said nothing. Without expressly saying so, it was evident that she dissented from Mr. Reynolds' opinion. The broker's loss unfitted him for work, and he left the details of office work to his subordinates, while nearly all his time was spent in interviews with the police authorities or in following up faint clews. His loss seemed to strengthen the intimacy and attachment between him and Grant, in whom he confided without reserve. When at home in the evening he talked over with Grant, whom he found a sympathetic listener, the traits of the stolen boy, and brought up reminiscences, trifling, perhaps, but touching, under the circumstances. To Mrs. Estabrook he seldom spoke of his son. Her cold and unsympathetic temperament repelled him. She had never preferred to feel any attachment for Herbert, and the boy, quick to read her want of feeling, never cared to be with her. One morning, after Mr. Reynolds and Grant had gone out, Mrs. Estabrook, on going to the hall, saw a letter on the table, which had been left by the postman. As curiosity was by no means lacking in the housekeeper's composition, she took it up, and peered at the address through her glasses. It was directed to Mr. Reynolds in a round, schoolboy hand.