“Has the postman come?” asked Mrs. Milroy.

The nurse laid a letter on the bed without answering, and waited, with unconcealed curiosity, to watch the effect which it produced on her mistress.

Mrs. Milroy tore open the envelope the instant it was in her hand. A printed paper appeared (which she threw aside), surrounding a letter (which she looked at) in her own handwriting! She snatched up the printed paper. It was the customary Post-office circular, informing her that her letter had been duly presented at the right address, and that the person whom she had written to was not to be found.

“Something wrong?” asked the nurse, detecting a change in her mistress’s face.

The question passed unheeded. Mrs. Milroy’s writing-desk was on the table at the bedside. She took from it the letter which the major’s mother had written to her son, and turned to the page containing the name and address of Miss Gwilt’s reference. “Mrs. Mandeville, 18 Kingsdown Crescent, Bayswater,” she read, eagerly to herself, and then looked at the address on her own returned letter. No error had been committed: the directions were identically the same.

“Something wrong?” reiterated the nurse, advancing a step nearer to the bed.

“Thank God—yes!” cried Mrs. Milroy, with a sudden outburst of exultation. She tossed the Post-office circular to the nurse, and beat her bony hands on the bedclothes in an ecstasy of anticipated triumph. “Miss Gwilt’s an impostor! Miss Gwilt’s an impostor! If I die for it, Rachel, I’ll be carried to the window to see the police take her away!”

“It’s one thing to say she’s an impostor behind her back, and another thing to prove it to her face,” remarked the nurse. She put her hand as she spoke into her apron pocket, and, with a significant look at her mistress, silently produced a second letter.

“For me?” asked Mrs. Milroy.

“No!” said the nurse; “for Miss Gwilt.”