"An adopted middle child receives an unexpected package on an otherwise unremarkable birthday inviting her to join a super-secret division of the CIA"-- Provided by publisher.

For their first assignment in fourth grade Finley has to think of an invention that will help the world--but when her Supersonic Sibling Sublimator appears to work too well, and her annoying older brother vanishes, only to reappear laughing at the trick he played, Finley comes up with a new invention she is sure will be a hit.

Esther, an ordinary middle child, returns to school after a quiet summer to discover that her friends haven't returned and the mountains surrounding the school, usually alive with Faeries, have become dark and threatening with Shadow Mages, and it's up to Esther to do something extraordinary.

"Things have changed in the Tibbs house, and Mya isn't happy about it. She's stuck in the middle between an exceptionally cute baby sister and an exceptionally smart older brother. And her tired parents seem to only notice the "exceptional" kids in the house. So when a class project lassoes Mya into starting her own school newspaper, she's sure this will earn her the star status she wants from her parents. But the same project also gives Mya's archenemy,...

Every year the fourth grade has to do a plan and complete a service project for the school and community, and after a particularly unappetizing school lunch Finley suggests that they should plant a vegetable garden--but when the radishes she and her friends Henry and Olivia plant take too long to sprout she gets very frustrated.

Eleven-year-old Maggie, a middle-born child where only the eldest are valued, has her world turned upside-down by forbidden friendship with Una, a wanderer girl from outside the boundaries of Fennis Wick.

A little pig in a big city leads to lots of trouble! Josie Shilling's family is too big, their cramped city house is too small, and she feels like no one is ever on her side. Then, on Thanksgiving Day, her older brother, Tom, brings home a pink, squirmy bundle wrapped in an old football jersey--a piglet he rescued from a nearby farm. Her name is Hamlet.

When Daisy, a middle child, is invited to spend the night at her friend's house, her family finally pays attention to her.

Tony, a macaroni penguin, is a middle child with very exasperating siblings, and although he never looks for trouble, it often finds him.

Azaleah can't wait for her class field trip to the National Zoo in Washington D.C., especially when her teacher announces the chance to earn extra credit. But when Azaleah gets home, she quickly realizes extra credit isn't as easy as she thought. Azaleah's younger sister Tiana can't find Greenie, her stuffed animal, and she's sure he's been stolen. With Mama at the restaurant and Daddy at work on a big case, it seems Azaleah is the only one available...