It’s 2036 and time travel experts are racing to stop a future plague capable of causing mass extinction in less than 40 years. But Marc McKnight and his team’s success depends on Rachel Patterson, an incarcerated time traveler from the future who is violently obsessed with him. Unbeknownst to McKnight, a dangerous female Operative has been dispatched from the future to rescue Rachel, regardless of the cost and potentially catastrophic impact on history. McKnight and his team must outsmart the Operative to prevent both the plague, and the political revolution tied to its malevolent inception. Time Plague is Book 4 of the Marc McKnight Time Travel Adventures series.