The Small House at Allington by Anthony Trollope

I have already declared that Crosbie wrote and posted the fatal letter to Allington, and we must now follow it down to that place. On the morning following the squire's return to his own house, Mrs. Crump, the postmistress at Allington, received a parcel by post directed to herself. She opened it, and found an enclosure addressed to Mrs. Dale, with a written request that she would herself deliver it into that lady's own hand at once. This was Crosbie's letter.

"It's from Miss Lily's gentleman," said Mrs. Crump, looking at the handwriting. "There's something up, or he wouldn't be writing to her mamma in this way. " But Mrs. Crump lost no time in putting on her bonnet, and trudging up with the letter to the Small House. "I must see the missus herself," said Mrs. Crump. Whereupon Mrs. Dale was called downstairs into the hall, and there received the packet. Lily was in the breakfast-parlour, and had seen the postmistress arrive; -- had seen also that she carried a letter in her hand. For a moment she had thought that it was for her, and imagined that the old woman had brought it herself from simple good-nature. But Lily, when she heard her mother mentioned, instantly withdrew and shut the parlour door. Her heart misgave her that something was wrong, but she hardly tried to think what it might be. After all, the regular postman might bring the letter she herself expected.