A Drop of Blue

When Cate is pulled from 1972 through a mysterious window of light, she ends up in a walled city for accidental time travelers in the year 2043. She's trapped along with thousands of other “rifters”. But when Cate meets Angus, they set out to find the truth. As they navigate from one harrowing situation to another, they get deeper in trouble. When Angus is forced to reveal a secret that changes the game completely, they’ll either lose their lives or be stranded in vastly different timelines, separated from one another forever...