Not the place in which to look for the Great Adventure, the dingy, narrow office on the mezzanine floor of Hunter, Baxter & Hunter's great wholesale drug establishment, in San Francisco city, at the beginning of the present century. Nothing could have seemed more monotonous, more grimy, less interesting, to the outsider's eye at least, than life as it presented itself to the twelve women who were employed in bookkeeping there. Yet, being young, as they all were, each of these girls was an adventuress, in a quiet way, and each one dreamed bright dreams in the dreary place, and waited, as youth must wait, for fortune, or fame, or position, love or power, to evolve itself somehow from the dulness of her days, and give her the key that should open--and shut--the doors of Hunter, Baxter & Hunter's offices to her forever. And, while they waited, working over the unvaried, stupid columns of the company's books, they talked, confided, became friends, and exchanged shy hints of ambition. The ill-ventilated, neglected room was a little world, and rarely, in a larger world, do women come to know each other as intimately as these women did. Therefore, on a certain sober September morning, the fact that Miss Thornton, familiarly known as "Thorny," was out of temper, speedily became known to all the little force. Miss Thornton was not only the oldest clerk there, but she was the highest paid, and the longest in the company's employ; also she was by nature a leader, and generally managed to impress her associates with her own mood, whatever it might be. Various uneasy looks were sent to-day in her direction, and by eleven o'clock even the giggling Kirk sisters, who were newcomers, were imbued with a sense of something wrong.