In this latest installment of Arnold's #1 "New York Times"-bestselling series, Buzz has a nightmare that his best friend Fly Guy has created a gigantic Frankenfly monster.

Twelve-year-old Suzy Swanson wades through her intense grief over the loss of her best friend by investigating the rare jellyfish she is convinced was responsible for her friend's death.

Two best friends understand that saying goodbye to one experience means saying hello to the next, but that does not make it easier when one friend has to move away.

When an arrogant new girl comes to school, third-graders and best friends Nikki and Deja decide to form a club that would exclude her but find the results not what they expected.

Gossie and Gertie are best friends and everywhere Gossie goes, Gertie goes too--except when she doesn't, and sometimes that's even better.

Zombelina and Lizzie are dancing in The Nutcracker, but Grandpa Phantom has other plans for the opera house and the friends must save the show.

Second-grade best friends Ivy and Bean beg for ballet lessons, then, when they are cast as squids in their first recital, scheme to find a way out of what seems to be boring, hard, and potentially embarrassing.

Twelve-year-old Sophie and her 300-year-old best vampire friend Delphine break into a secret government facility to find a cure for the illness causing vampires to go rogue.

While Ballet Cat and Sparkles the Pony are trying to decide what to play, they each share an important secret.

"It's almost time for school to start again, and Nikki is a little worried -- but, as always, she has her BFFS to help. Only, it turns out her friends need Nikki's help. Nikki quickly gets overwhelmed and even starts feeling sick... which is when her little sister, Brianna, takes her chance to steal Nikki's diary! How much damage can Brianna do before Nikki is back on her feet?" -- Provided by publisher.