When the normally unseen sixth grader Hector discovers he can turn invisible, he learns that he is not the only invisible boy at his school and there are worse things than bullies lurking the halls.

"The house seemed to sit apart from the others on Katydid Street, silent and alone, like it didn't fit among them. For Violet Hart-whose family is about to move into the house on Katydid Street-very little felt like it fit anymore. Like their old home, suddenly too small since her mother remarried and the new baby arrived. Or Violet's group of friends, which, since they started middle school, isn't enough for Violet's best friend, Paige. Everything...

"Hilo's friends Polly the warrior cat and her brother Pip are sent to a magical boarding school for bad kids"-- Hilo's favorite warrior-cat-friend, Polly's adventures with Hilo have landed her in trouble! So when Polly breaks one too many rules, she gets sent to Wombatton--the magical boarding school for bad kids. But something strange is going on at Wombatton--why does everyone pick on Polly's roommate? And why have students started disappearing?...