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Rh see some large boy on the street, but"

"I'm big enough!" exclaimed Bert.

"Yes, I believe you are!" agreed the elderly lady, looking at him through her glasses. "Well, I shall be very thankful to you and your sister if you will mail the letter for me. And, on your way back, stop and let me know that you dropped it in the post-office all right."

"We will!" promised Bert, and Nan nodded her head in agreement with him. Miss Pompret handed over the letter, which was in a large envelope. Nan and Bert were soon at the post-office with it.

The white-haired lady was waiting for them on the porch as they came back along the street.

"Won't you come in, just for a minute?" she asked, smiling kindly at them. "My maid has just baked a chocolate cake, and I don't believe your mother would mind if you each had a piece."

"Oh, no'm—she wouldn't mind at all!" said Bert quickly.

"We like chocolate cake," said Nan, "but we didn't go to the post-office for that!"