Abandoned as a baby at Chipchase’s Travelling Circus, Louie dreams of becoming a ‘Showstopper’. Yet Mr Chipchase only ever lets her sell tickets. No Death-Defying Stunts for her. So in secret, Louie practises her act – the tightrope – and dreams of being the Girl Who Walked on Air. All she needs is to be given the chance to shine. One night a terrible accident occurs. Now the circus needs Louie’s help, and with Wellbeloved’s rival show stealing their crowds, Mr Chipchase needs a Showstopper- fast. Against his better judgement, he lets Louie perform. She is a sensation and gets an offer from the sinister Mr Wellbeloved himself to perform… over Niagara Falls. But nothing is quite as it seems and soon Louie’s bravery is tested not just on the highwire but in confronting her past and the shady characters in the world of the circus . . .