Time's divide

"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 timeline shift. Worse. the loyalties of those around her--including the allegiances of Kiernan and the Fifth Column--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."--Page [4] of cover.