From the Mixed-Up Files of Mrs. Basil E. Frankweiler

 My Rating: 4.9

Claudia decides to run away and asks her younger brother James to accompany her, mainly because he is a miser and will have money. She has it all planned - of how they will get from their home in Greenwich to New York City and live in the Metropolitan Museum of Art. 

This captures both Claudia and James personalities so well. I know many of you have read this when you were younger but, I had never heard of this. So very cute and engaging.