Sister to a Star by Eloise Smith

Evie is forever crossing swords with her twin. While she practices her after-school fencing, Tallulah is winning movie auditions.

Neither of them could have imagined how their worlds would collide, but when Tallulah goes to Hollywood Evie goes too – as her sister’s identical stand-in.

But that changes, when the film needs some all-action sword-play. Soon Evie’s the one enjoying the limelight – that is, until Tallulah goes missing …