"You are very kind," answered Mrs. St. Henry, quickly--"but it is not necessary--my husband is too infirm to travel, and believing me well, he will suffer no anxiety on my account--I think I shall be quite well, after taking your sovereign medicine. Give it me now, if you please, while I am in a vein of compliance." She turned, with so lovely a smile, and extended her hand with so much grace, Mrs. Astor stood a moment, thinking what a beautiful picture she would make; then taking the lamp in her hand, she opened her closet, and took down the medicine casket. It happened that the first paper she touched was that which Mary had left, and which the servant had mingled with the others. "Here is one already prepared," cried she--"I always keep them ready, the exact number of grains usually given, as we often want it suddenly and at night." She mixed the fatal powder with some delicious jelly, and holding it to the lips of her patient, said with a cheering smile--"Come, it has no disagreeable taste at all." Mrs. St. Henry gave a nervous shudder, but took it, unconscious of its deadly properties; and Mrs. Astor, praising her resolution, seated herself in an easy chair by the bedside, and began to read. She became deeply interested in her book, though she occasionally glanced towards her patient to see if she slept. She had placed the lamp so that its light would not shine on the bed, and the most perfect quietness reigned in the apartment. How long this tranquillity lasted it is impossible to tell, for she was so absorbed in her book, time passed unheeded. At length Mrs. St. Henry began to moan, and toss her arms over the covering, as if in sudden pain. Mrs. Astor leaned over her, and took her hand. It was hot and burning, her cheek had a scarlet flush on it, and when she opened her eyes they had a wild and alarming expression. "Water," she exclaimed, leaning on her elbow, and shading back her hair hurriedly from her brow--"Give me water, for I die of thirst." "I dare not," said Mrs. Astor, terrified by her manner--"anything but that to quench your thirst." She continued still more frantically to call for water, till Mrs. Astor, excessively alarmed, sent for the doctor, and called in other attendants. As he was in the neighbourhood, he came immediately. He looked aghast at the situation of his patient, for she was in a paroxysm of agony at his entrance, and his experienced eye took in the danger of the case. "What have you given her, madam?" said he, turning to Mrs Astor, with a countenance that made her tremble. "What have you given me?" exclaimed Mrs. St. Henry, grasping her wrist with frenzied strength--"You have killed me--it was poison--I feel it in my heart and in my brain!" Mrs. Astor uttered a scream, and snatched up the paper which had fallen on the carpet. "Look at it, doctor--it was calomel, just as you prescribed--what else could it be!" The doctor examined the paper--there was a little powder still sticking to it.