It's been three months since 13-year-old Edie solved her mother's murder and became a supersleuth.

One evening Edie is babysitting for a neighbour, Donna, who has repeatedly caught sight of an estranged friend from overseas. What is troubling Donna, however, is that it seems she's been in the same place at the same time as this friend on a number of occasions over the past few days. Meanwhile, Edie's school friend Harry Coranger is suspicious of his stepfather, who has become involved with ultra-radical anti-capitalists who, furious at the state of the planet and its greed-fuelled decline, are plotting an audacious double atrocity.

Utilising her brave instincts and skills as a supersleuth for hire, Edie sets about resolving the mysteries and averting the crises that she is confronted with - as she comes to realise that things often happen outside of chance, and outside of our understanding and control.

To solve each mystery, Edie must harness the Three Principles, a new approach to understanding how the mind works that is currently proving invaluable in improving mental health and well-being in children internationally.

Reading age 11+.