A Deadly ThreatThe FBI receive an anonymous threat from a terrorist group that claims it can trigger earthquakes.A Lone AgentJudy Maddox, an FBI Agent with a point to prove, is tasked with investigating the threat by her obstructive superiors. She must discover if it is credible and, if so, where it comes from.A State on the Verge of DestructionWhen a suspected machine-generated tremor is detected, her investigation reaches a critical point – can she find those responsible, and their next target, before they trigger a catastrophe that will devastate the entire West Coast of America and the millions of people who live there . . . ‘Crackles with suspense’ Daily Telegraph‘So exciting I found myself setting the alarm clock for four in the morning to finish it’ Daily Mail