Olivia Barrett believes in destiny. In determinism. In the certainty that her life's path is already set.But when a deadly explosion destroys her university lab-and kills the very professors she accused of misconduct-Olivia becomes the FBI's prime suspect.Teaming up with Rachel Quinn, an FBI bomb specialist who believes in free will above all else, Olivia must navigate a growing body count, a relentless investigation, and a series of disturbing events that suggest time itself may be slipping.As the past and future tangle around them, Olivia and Rachel must unravel a killer's plan before fate seals their own.A mind-bending thriller of fate, obsession, and how far one person will go to rewrite the past.