Characters

Sascha Martin is an inventor. His ideas are so unusual that even he doesn't know where they come from. But once he's thought of something, he'll find a way to make it happen - whatever the consequences and however approximately. He lives on Periwinkle Crescent and is in Class 2M at Landfill Public School. His only neighbours are Luca Blanco (his best friend), and Mary-Alice Cooper (a trial to be endured). There's also the Periwinkle Palace of the Past, but that's another story.

Mary-Alice Cooper is Sascha's very best non-friend. Luca's, too. The three of them are inseparable, unless the boys can escape when she's not looking. She's an outspoken member of class 2M and is never without her phone (for selfies) and her iPad (a fashion accessory). Her opinions are regularly broadcast on Twitter, Facebook, in class, in the playground, on the way to and from school, in her blog entries, in peremptory notes thrust into reluctant hands, and in any other forum she can access.

Thomas Shepherd is such a deep thinker that he often fails to notice the outside world. But the outside world sees him, because he's Different. He's at his happiest with a puzzle to solve, or a mystery to unravel, and Through the Wormhole he'll find plenty of material to work with.

Ruben Novak is a big kid and a bully, and the cloud that constantly darkens Thomas Shepherd's life. He's always in trouble, always on detention, always on the lookout for something nasty to do to someone - anyone. But when he slips Through the Wormhole, the old rules change for good.

Jenny Sawyer loves unicorns. She's also a teacher's pet with a serious sticker addiction. She'll do anything to get them, and she doesn't care what her classmates think. There's never a wrinkle in her clothes or a hair out of place. Her best friend is Sarah, and Ruben Novak is her nemesis.