But who knows the handsome young woman sitting on her right hand, playing with her luncheon instead of eating it? Nobody really knows her. She is prettily dressed in gray poplin, trimmed with gray velvet, and set off by a ribbon of deep red tied in a bow at the throat. She is nearly as tall as Lady Janet herself, and possesses a grace and beauty of figure not always seen in women who rise above the medium height. Judging by a certain innate grandeur in the carriage of her head and in the expression of her large melancholy gray eyes, believers in blood and breeding will be apt to guess that this is another noble lady. Alas! she is nothing but Lady Janet’s companion and reader. Her head, crowned with its lovely light brown hair, bends with a gentle respect when Lady Janet speaks. Her fine firm hand is easily and incessantly watchful to supply Lady Janet’s slightest wants. The old lady--affectionately familiar with her--speaks to her as she might speak to an adopted child. But the gratitude of the beautiful companion has always the same restraint in its acknowledgment of kindness; the smile of the beautiful companion has always the same underlying sadness when it responds to Lady Janet’s hearty laugh. Is there something wrong here, under the surface? Is she suffering in mind, or suffering in body? What is the matter with her? The matter with her is secret remorse. This delicate and beautiful creature pines under the slow torment of constant self-reproach. To the mistress of the house, and to all who inhabit it or enter it, she is known as Grace Roseberry, the orphan relative by marriage of Lady Janet Roy. To herself alone she is known as the outcast of the London streets; the inmate of the London Refuge; the lost woman who has stolen her way back--after vainly trying to fight her way back--to Home and Name. There she sits in the grim shadow of her own terrible secret, disguised in another person’s identity, and established in another person’s place. Mercy Merrick had only to dare, and to become Grace Roseberry if she pleased. She has dared, and she has been Grace Roseberry for nearly four months past. At this moment, while Lady Janet is talking to Horace Holmcroft, something that has passed between them has set her thinking of the day when she took the first fatal step which committed her to the fraud.