When a strange signal hijacks her laptop, Lisa de Vries does what she always does—she investigates.What she doesn't expect… is for the signal to answer back.Late one night in the school lab, Lisa and her friends intercept a mysterious broadcast—coded, deliberate, and impossible to trace. What begins as curiosity quickly spirals into something far more dangerous when the signal sends them coordinates… and a warning.They weren't supposed to hear it.Now someone knows they did.Pulled into a hidden world of encrypted transmissions, shadowy operatives, and a rogue system capable of predicting human behavior, Lisa, Eben, Hugo, and Inge find themselves hunted for something they don't fully understand.Then the stakes escalate.A kidnapped scientist. A ticking clock. A deadly game designed to test them.Save him… or watch him die.As they race against time, they uncover the truth behind Project Echo—a classified program built to predict the future… and control it. But someone has turned it into a weapon, and the deeper they go, the clearer it becomes:They were chosen for a reason.Now they must outthink a system that already knows their every move.Because in a world where the future can be predicted…Free will might be the most dangerous weapon of all.
