What are the important events that move the story from the mixed up files of mrs. basil e?

Important events that move the story in "From the Mixed-Up Files of Mrs. Basil E. Frankweiler" include Claudia and Jamie running away from home, living in the Metropolitan Museum of Art, solving the mystery of the angel statue, and meeting Mrs. Basil E. Frankweiler herself. These events lead to character development and self-discovery for the siblings as they learn about themselves and the world around them.