"My sister will not like it the less for my helping her," said Marion, affectionately turning to Agnes. "You may leave it with me, Dixon."

Marion was surprised to see the woman visibly change color when she said this. The abigail instantly compressed her lips as if to prevent their quivering, fixed her wild glaring eyes on Agnes, and then gave an anxious glance at the dinner tray.

"This pudding seems excellent," continued Marion, helping Agnes; "but surely there is rather too much sugar scattered on the top! Sugar!" added Marion in accents of astonishment, when she had put it to her lips; "this is not sugar! stop, Agnes! stop! I charge you not to taste it!" exclaimed Marion, hastily dashing the spoon out of her sister's hand, as she was raising it to her mouth. "What can this mean? There is something here I do not understand. It must be explained!"

Bewildered and amazed, Marion looked round, and beheld a dark scowl of rage and fear, like insanity itself, never afterwards to be forgotten, which disturbed the countenance of Dixon for a moment, and then she became of a livid, unnatural whiteness, when, in a low, subdued voice, she uttered,

"I know nothing about it; the cook seasons Miss Dunbar's dinner; if this is not to her taste, I can take it away."

"Marion, what is the matter? I hate all this fuss. Pray do not make a scene when I am so ill. Dixon manages for me without half this trouble. The pudding seems good enough."

Marion trembled visibly as she got up, but without saying another word she rang three times for the cook, who expressed the greatest astonishment when the pudding was shown to her, saying, in a tone of pique, as she supposed her skill was in question,

"I put none of that there powdering on; sure it be something very queer; neither sugar, salt, nor mustard! It would be of little use in a kitchen, with no taste? I declare," added she, suddenly changing color, "to my thinking, it be nothing better nor worse than arsenic!"

A stifled cry of astonishment and consternation escaped from Marion at these words, while she hurriedly exclaimed, "Stop Dixon; do not let Dixon leave the house! Send for an apothecary. Where is Patrick?"

The powder, on being analyzed, proved, indeed, to be arsenic, which Dixon bought on the previous evening, on the usual pretext of poisoning rats; but while Marion was raising an alarm, the culprit herself absconded, carrying off all Agnes' trinkets and money, which she must previously have secreted; and notice of the robbery was immediately sent to the police. Among her valuable collection of jewelry, Agnes bestowed the most audible lamentations on a splendid locket set in diamonds with her brother's hair; but her secret regrets were the deepest for a crystal scent-bottle, with a gold top set in turquoises, which Captain De Crespigny had presented on the previous evening, pretending he had lost it to her in a bet.