Everyone in second grade seems set on breaking a world record and friends Ivy and Bean are no exception, deciding to become the youngest people ever to discover a dinosaur skeleton.

When the Aldens help a friend of their grandfather's to build the world's largest yo-yo, they soon discover that more than one person is trying to prevent them from finishing the job--and for more than one reason.

Ten-year-old (nearly eleven) Zara's nickname is "Queen of the Neighborhood" because she organizes the other children (even the older ones), sets the rules, and generally makes sure everyone has fun; but now another ten-year-old, Naomi, has moved in across the street and she has her own ideas about fun games, and suddenly the other kids (even Zara's younger brother Zayd) are listening to Naomi--if she is going to retain her influence Zara needs to...