Wendy Mass

After celebrating their first nine same-day birthdays together, Amanda and Leo, having fallen out on their tenth and not speaking to each other for the last year, prepare to celebrate their eleventh birthday separately but peculiar things begin to happen as the day of their birthday begins to repeat itself over and over again.

After her twelfth birthday, Rory checks off a list of things she is finally allowed to do, but unexpected consequences interfere with her involvement in the movie being shot at her school, while a weird prediction starts to make sense.

Joss, the seventh son of the Supreme Overlord of the Universe, must team up with a human girl to re-create Earth, when the planet is accidentally erased from existence.

When four twelve-year-olds, including Logan, who has grown up never leaving his parents' Life Is Sweet candy factory, compete in the Confectionary Association's annual contest, they unexpectedly become friends and uncover secrets about themselves during the process.

The Voyagers have made it to the last planet but must acquire a seventh element, combat dragons and an alien clone, and face serious illness before returning to Earth.

Shortly before her thirteenth birthday, shy and withdrawn Tara is sent to stay with her aunt, uncle, and cousin in her parents' hometown of Willow Falls, where she makes friends and becomes involved with an elderly buyer and seller of collectibles, who seems to be trying to give Tara some kind of mysterious message.

Afraid that she is crazy, thirteen-year-old Mia, who sees a special color with every letter, number, and sound, keeps this a secret until she becomes overwhelmed by school, changing relationships, and the loss of something important to her.

"With her life recently turned upside down, 12-year-old Addie is uncomfortable in her own skin until the world of virtual reality sparks her imagination and leads to an exciting new project, a new friend, and to reconnecting with who she's always been"-- Provided by publisher.

On her fourth Leap birthday, when she turns sixteen, Josie has a number of momentous experiences, including taking her driver's test, auditioning for a school play, and celebrating with her family and friends.

"When the space taxi navigation systems go down, stranding dozens of aliens on Earth, eight-year-old Intergalactic Security Force deputy Archie needs to think quickly to keep them hidden from his unsuspecting neighbors!"-- Provided by publisher.