So Flossie was lost and found again. The old man was one of the librarians, and he had taken good care of the little girl until her family came for her. After thanking him, Mr. and Mrs. Bobbsey led their twins downstairs and Mr. Bobbsey said:
"Well, I think we have seen enough of the library for a time. We had better go and see the Martins."
"Oh, yes!" cried Bert. "Billy said he'd take me to see the President."
"And I want to go, too!" added Nan.
"We'll see!" half promised her mother.
In an automobile the Bobbsey family rode to where the Martin family lived. And you can well believe that Billy and Nell were glad to see the Bobbsey twins once more. Mrs. Martin welcomed Mrs. Bobbsey, and soon there was a happy reunion. Mr. Martin was at his office, and Mr. Bobbsey said he would go down there to see him.
"Then couldn't we go out and see the President while mother stays here and visits with Mrs. Martin?" asked Nan. "Nell and Billy will go with us."
"I think they might go," said Mrs. Martin. "Billy and Nell know their way to the White House very well, as they often go. It isn't far from here."
"Well, I suppose they may go," said Mrs. Bobbsey slowly.
"And I want to go, too!" exclaimed Freddie. "I want to see the dent."