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

Through dogged determination, they use the last of their resources to locate the former owner of the angel, Mrs. Basil E. Frankweiler, the lady of the title and narrator of the story. After winning the good lady's favorable consideration, they negotiate a deal with her, the outcome of which decides the success or failure of their adventure.

A charming story, with a little educational material sneakily tucked between the paragraphs. A good book for children with enquiring minds, and a useful tool when planning your next family or school trip to the Met.