The Chronos Files Series by Rysa Walker

When Kate Pierce-Keller’s grandmother gives her a strange blue medallion and speaks of time travel, sixteen-year-old Kate assumes the old woman is delusional. But it all becomes horrifyingly real when a murder in the past destroys the foundation of Kate’s present-day life. Suddenly, that medallion is the only thing protecting Kate from blinking out of existence... moreWhen Kate Pierce-Keller’s grandmother gives her a strange blue medallion and speaks of time travel, sixteen-year-old Kate assumes the old woman is delusional. But it all becomes horrifyingly real when a murder in the past destroys the foundation of Kate’s present-day life. Suddenly, that medallion is the only thing protecting Kate from blinking out of existence. Kate learns that the 1893 killing is part of something much more sinister, and Kate’s genetic ability to time-travel makes her the only one who can stop him. Risking everything, she travels to the Chicago World’s Fair to try to prevent the killing and the chain of events that follows. Changing the timeline comes with a personal cost, however—if Kate succeeds, the boy she loves will have no memory of her existence. And regardless of her motives, does she have the right to manipulate the fate of the entire world? less

When Kate Pierce-Keller’s grandmother gives her a strange blue medallion and speaks of time travel, sixteen-year-old Kate assumes the old woman is delusional. But it all becomes horrifyingly real when a murder in the past destroys the foundation of Kate’s present-day life. Suddenly, that medallion is the only thing protecting Kate from blinking out of existence... moreWhen Kate Pierce-Keller’s grandmother gives her a strange blue medallion and speaks of time travel, sixteen-year-old Kate assumes the old woman is delusional. But it all becomes horrifyingly real when a murder in the past destroys the foundation of Kate’s present-day life. Suddenly, that medallion is the only thing protecting Kate from blinking out of existence. Kate learns that the 1893 killing is part of something much more sinister, and Kate’s genetic ability to time-travel makes her the only one who can stop him. Risking everything, she travels to the Chicago World’s Fair to try to prevent the killing and the chain of events that follows. Changing the timeline comes with a personal cost, however—if Kate succeeds, the boy she loves will have no memory of her existence. And regardless of her motives, does she have the right to manipulate the fate of the entire world? less

A Kindle exclusive novella, set in the world of Rysa Walker's Timebound. Kiernan Dunne abandoned his family ties to help Kate fight the Cyrists, and he's never regretted that for one moment. But he doesn't understand why Kate can't remember that night in 1893 Chicago, when she turned back to face the killer chasing them through the smoky corridors of the World's Fair Hotel... moreA Kindle exclusive novella, set in the world of Rysa Walker's Timebound. Kiernan Dunne abandoned his family ties to help Kate fight the Cyrists, and he's never regretted that for one moment. But he doesn't understand why Kate can't remember that night in 1893 Chicago, when she turned back to face the killer chasing them through the smoky corridors of the World's Fair Hotel. Kate placed the CHRONOS key around his neck and made his eight year old self promise to wear it always, and that's a promise Kiernan has never broken. When Kate suddenly vanishes after a Cyrist-engineered time shift, that hidden medallion is Kiernan's only hope for finding her. He returns to the Cyrist fold to look for clues, but his search will lead him back to the question that has haunted him for years--what really happened after he left Kate at the World's Fair Hotel? This digital novella gives Timebound readers a glimpse at Kate in another timeline and helps set the stage for Time's Edge, the second book in The CHRONOS Files Series , coming from Skyscape in October. less

To stop her sadistic grandfather, Saul, and his band of time travelers from rewriting history, Kate must race to retrieve the CHRONOS keys before they fall into the Cyrists' hands. If she jumps back in time and pulls the wrong key--one that might tip off the Cyrists to her strategy--her whole plan could come crashing down, jeopardizing the future of millions of innocent people. Kate's only ally is Kiernan, who also carries the time-traveling gene... moreTo stop her sadistic grandfather, Saul, and his band of time travelers from rewriting history, Kate must race to retrieve the CHRONOS keys before they fall into the Cyrists' hands. If she jumps back in time and pulls the wrong key--one that might tip off the Cyrists to her strategy--her whole plan could come crashing down, jeopardizing the future of millions of innocent people. Kate's only ally is Kiernan, who also carries the time-traveling gene. But their growing bond threatens everything Kate is trying to rebuild with Trey, her boyfriend who can't remember the relationship she can't forget. As evidence of Saul's twisted mind builds, Kate's missions become more complex, blurring the line between good and evil. Which of the people Saul plans to sacrifice in the past can she and Kiernan save without risking their ultimate goal--or their own lives? less

The Cyrists are swiftly moving into position to begin the Culling, and Kate’s options are dwindling. With each jump to the past or the future, Kate may trigger a new timeline shift. Worse, the loyalties of those around her—including the allegiances of Kiernan and the Fifth Column, the shadowy group working with Kate—are increasingly unclear. Kate will risk everything, including her life, to prevent the future her grandfather and the Cyrists have planned... moreThe Cyrists are swiftly moving into position to begin the Culling, and Kate’s options are dwindling. With each jump to the past or the future, Kate may trigger a new timeline shift. Worse, the loyalties of those around her—including the allegiances of Kiernan and the Fifth Column, the shadowy group working with Kate—are increasingly unclear. Kate will risk everything, including her life, to prevent the future her grandfather and the Cyrists have planned. But, when time runs out, it may take an even bigger sacrifice to protect the people she loves. less