"From the Mixed-Up Files of Mrs. Basil E. Frankweiler," is a children's novel written by E.L. Konigsburg. It was first published in 1967 and has since become a classic of children's literature. The story follows Claudia Kincaid, a young girl who decides to run away from home and live in the Metropolitan Museum of Art in New York City. She is accompanied by her younger brother, Jamie. While living in the museum, Claudia becomes intrigued by a mysterious statue of an angel that may have been sculpted by Michelangelo. The siblings embark on a quest to uncover the statue's origins, leading them on an adventure filled with intrigue and discovery. The novel explores themes of independence, sibling relationships, and the power of art to inspire curiosity and imagination. "From the Mixed-Up Files of Mrs. Basil E. Frankweiler" won the Newbery Medal in 1968 for its contribution to children's literature.