The fate of Earth hangs by a thread- and Tessa Graham is the only one who can keep it from snapping. As political tensions flare across the galaxy, a rogue faction known as the Human Defense League prepares to strike a fatal blow: the annihilation of Earth itself. Dr. Tessa Graham, Earth's weary guardian, must once again lead the charge to stop them. But this time, the threat is more insidious-reanimated mercenaries, ancient alien weapons, and a backlash that could doom the entire human race.
When the enigmatic Syfe twins offer Tessa a chance to travel back in time and prevent the catastrophe before it starts, she's forced to weigh the impossible: sacrifice the present to save the future. or let the spiral of destruction play out. But the past holds more than just answers. It holds Devon-the man she lost, the life that could have been. Torn between duty and longing, Tessa must navigate a web of loyalty, betrayal, and impossible choices before Earth's final clock runs out.
The fate of Earth hangs by a thread- and Tessa Graham is the only one who can keep it from snapping. As political tensions flare across the galaxy, a rogue faction known as the Human Defense League prepares to strike a fatal blow: the annihilation of Earth itself. Dr. Tessa Graham, Earth's weary guardian, must once again lead the charge to stop them. But this time, the threat is more insidious-reanimated mercenaries, ancient alien weapons, and a backlash that could doom the entire human race.
When the enigmatic Syfe twins offer Tessa a chance to travel back in time and prevent the catastrophe before it starts, she's forced to weigh the impossible: sacrifice the present to save the future. or let the spiral of destruction play out. But the past holds more than just answers. It holds Devon-the man she lost, the life that could have been. Torn between duty and longing, Tessa must navigate a web of loyalty, betrayal, and impossible choices before Earth's final clock runs out.