Ivette. Joanna. And now: Katrina. Whatever her name is, it won’t last long. Katrina doesn’t know any of the details about her past, but she does know that she and her parents are part of the Witness Protection Program. Whenever her parents say they have to move on and start over, she takes on a new identity. A new name, new hair color, new story. Until their location leaks and her parents disappear. Katrina embarks on a dangerous rescue mission to save them - and find out the truth of her past at last.

In the dead of night, a truck arrives in Slaughterville, a small town curiously named after its windowless slaughterhouse. Seven mysterious kids with suitcases step out of the vehicle and into an abandoned home on a dead-end street, looking over their shoulders to make sure they aren't noticed. But Ravani Foster covertly witnesses their arrival from his bedroom window. Timid and lonely, Ravani is eager to learn everything he can about his new neighbors: What secrets are they hiding? And most mysterious of all...where are the adults?

Maya's nervous about fifth grade. She tries to keep calm by reminding herself she knows what to expect. But then she learns that this year won't be anything like the last. For the first time since kindergarten, her best friends Jada and MJ are placed in a different class without her, and introverted Maya has trouble making new friends. She tries to put on a brave face since they are in fifth grade now, but Maya is nervous! Just when too much seems to be changing, she finds a robot named Ralph in the back of Mr. Mac's convenience store closet.

Eleven-year-old Willodeen adores creatures of all kinds, but her favourites are the most unlovable beasts in the land - strange beasts known as 'screechers'. The villagers of Perchance call them pests, even monsters, but Willodeen believes the animals serve a vital role in the complicated web of nature. Lately, though, nature has seemed angry indeed. Perchance has been cursed with fires and mudslides, droughts and fevers, and even the annual migration of hummingbears, which are a source of local pride and income, has dwindled.

Meg has been best friends with Beatrix forever. Everyone at school wants to be like confident, decisive Beatrix, and Meg has always felt the same. But this year, Meg wants to take a science course instead of dance class. She'd rather do what makes her happy‚ not what Beatrix wants. When a quirky girl named Hazel moves to town, Meg is partnered with her on a science project about bees. Meg learns a lot about being Queen Bee, in a hive and in middle school. As Beatrix is less than welcoming to Hazel, Meg feels her loyalty fraying.