Wendy Mass

Visiting her grandmother in Australia, Livy, ten, is reminded of the promise she made five years before to Bob, a strange, green creature who cannot recall who or what he is.

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.

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 their friend's younger sister enters a catatonic state on her tenth birthday, Amanda and Leo investigate and discover the elderly local woman with an air of magical ability is somehow involved. In order to save their friend's sister, they must dig deep into the past to solve the mysteries of the present.

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.

An underwater planet is drying up and it is up to Archie Morningstar, his dad, and Pockets the cat to use their space taxi and stop the water planet before it becomes the desert planet.

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.

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.

While trying to stop thieves from getting the last known canisantha plant for an unknown purpose, eight-year-old Intergalactic Security Force deputy Archie is mistaken for someone very important and directed by his trainer, Pockets the cat, to go on a spy mission aboard a B.U.R.P. ship.

"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.