From the day she arrives at quiet Mica High in a burst of color and sound, the hallways hum with the murmur of "Stargirl, Stargirl." She captures Leo Borlock's heart with just one smile. She sparks a school-spirit revolution with just one cheer. The students of Mica High are enchanted. Then they turn on her.

There used to be an empty chair at the back of my class, but now a new boy called Ahmet is sitting in it. He's eight years old (just like me), but he's very strange. He never talks and never smiles and doesn't like sweets - not even lemon sherbets, which are my favourite! But the truth is, Ahmet really isn't very strange at all. He's a refugee who's run away from a war. A real one. With bombs and fires and bullies that hurt people. And the more I find out about him, the more I want to be his friend.

When Harold Fry nips out one morning to post a letter, leaving his wife hoovering upstairs, he has no idea that he is about to walk from one end of the country to the other. He has no hiking boots or map, let alone a compass, waterproof, or mobile phone. All he knows is that he must keep walking - to save someone else's life.

Turning invisible at will: it's one way of curing your acne. But far more drastic than 13 year-old Ethel Leatherhead intended when she tried a combination of untested medicines and a sunbed. It's fun at first, being invisible. And aided by her friend Boydy, she manages to keep her extraordinary ability secret. Or does she?

Cammie O'Reilly is the warden's daughter, living in an apartment above the entrance to the Hancock County Prison. But she's also living in a prison of grief and anger about the mother who died saving her from harm when she was just a baby. And prison has made her mad. This girl's nickname is Cannonball.