The sibling rivalry between twelve-year-old Megin and her older brother Greg intensifies after she ruins his science project and he retaliates by throwing her favorite hockey stick into the pond.

"Evan Treski is people-smart. He's good at talking with people, even grownups. His younger sister, Jessie, on the other hand, is math-smart--but not especially good at understanding people. She knows that feelings are her weakest subject. With just five days left of summer vacation, Evan and Jessie launch an all-out war to see who can sell the most lemonade before school starts. As the battleground heats up, there really is no telling who will win--and...

When fifteen-year-old Miguel's time finally comes to leave his poor Mexican village,cross the border illegally,and join his parents in California, his younger sister's determination to join him soon imperils them both.

The four Penderwick sisters are faced with the unimaginable prospect of their widowed father dating, and they hatch a plot to stop him.