Provide a summary of the text Double the Danger and Zero Zucchini by Betsy Uhrig and her nephew Alex Harmon, including the most important details to retell the story: (this should be at least a paragraph long)
Double the Danger and Zero Zucchini is a children's book written by Betsy Uhrig and her nephew Alex Harmon. The story is about twins, Aidan and Nadia, who are left with their grandparents for the summer while their parents are away. The twins are excited to spend time with their grandparents, but they soon discover that their grandmother is a terrible cook who loves to serve them zucchini. One day, Aidan and Nadia stumble upon a mysterious box in their grandparents' attic that leads them on a thrilling adventure full of danger and secrets. Along the way, they discover that their grandpa used to be a spy, and they must use their wit and curiosity to uncover a dangerous plot and save the world. The book is a fun and exciting adventure that will keep children entertained and engaged until the very end.
