A thrilling tale of two worlds colliding, when ten-year-old Kara finds mysterious footprints in the snow and must find out who they belong to.

There was a single trail of footprints, the first I'd seen all morning. They were fresh tracks, I saw, the edges of the impressions in the snow quite hard. Small feet. Like mine. Someone my age.
Then they stopped.

When mysterious footprints appear in the Stockholm snow, ten-year-old Kara must discover where they've come from - and who they belong to. They lead Kara to Rebecca, a thirteen-year-old Jewish girl, and her younger brother Samuel. Kara realises they are refugees - from another time, World War Two - and are trying to find their way home.

The grief and loneliness that Rebecca and Samuel have endured is something Kara can relate to - feeling like you're always on the outside looking in - and she finds herself compelled to help them. Through her eyes, we rediscover the magic that lies in the world around us, if only we have the courage to look for it.

Kara is a heroine for modern times: fragile but fierce, in this utterly compelling story from a stellar new voice in children's literature, Matthew Fox