In reality, the cause of Job's slowness lay, not so much in his age as in his afflicted knees; and they kept his driver in a constant state of anxiety as to which pair would give out next. Now his hind legs would suddenly fail him, and he would apparently attempt to seat himself in the dust; then, just as he had recovered from that shock, his front knees would collapse, and Job would plunge madly forward on his venerable nose. But, after all, they had many a pleasant drive up and down the country roads, where the old horse plodded onwards, apparently enjoying the scenery as much as his mistress did, now stopping to graze by the roadside, now suddenly turning aside and, before his driver was aware of his intention, landing her in the dooryard of some farmhouse where the doctor had visited a patient years before. For Job had a retentive memory, and was never known to forget a road or a house where he had once been. During the last of the time that the doctor had driven him, he had lent him to do occasional service at funerals, where Job was never known to disgrace himself by breaking into an indecorous trot. Something in the ceremony of these melancholy journeys had struck Job's fancy and impressed the circumstances on his memory to such an extent that, ever after, he was reluctant to pass the cemetery gate, but tugged hard at the lines to show his desire to enter. It was not so bad when Mrs. Adams and Polly were by themselves; but Mrs. Adams often invited some convalescing patient of the doctor to go for a quiet little drive, and it was mortifying to have Job, taking advantage of the moment when his mistress was deep in conversation, stalk solemnly under the arching gateway and bring his invalid passenger to a halt beside some new-made grave. There seemed to be no apology that could fitly meet the occasion and do away with the gloomy suggestiveness of the situation. Aunt Jane rarely had time to drive with Job, for an ordinarily fast walker could pass him by; but Polly and her mother enjoyed him to the utmost, and spoiled him as much as they enjoyed him, letting him stroll along as he chose, stopping whenever and wherever he wished. To avoid being dependent on the man, who was often away driving the doctor upon his rounds, Mrs. Adams had learned to harness Job herself, and nearly every pleasant day she could be seen buckling the straps and fastening him into the carriage, while the old creature stood quiet, rubbing his head against her shoulder, now and then, with a gentle, caressing motion, or turning suddenly to pretend to snap at Polly, who was much in awe of him, and then throwing up his head and showing his teeth, in a scornful laugh at her fear.