Published by Random House Books for Young Readers
ISBN 0307931544 (ISBN13: 9780307931542)

SYNOPSIS:
“The city of Kersh is a safe haven, but the price of safety is high. Everyone has a genetic Alternate—a twin raised by another family—and citizens must prove their worth by eliminating their Alts before their twentieth birthday. Survival means advanced schooling, a good job, marriage—life.
Fifteen-year-old West Grayer has trained as a fighter, preparing for the day when her assignment arrives and she will have one month to hunt down and kill her Alt. But then a tragic misstep shakes West’s confidence. Stricken with grief and guilt, she’s no longer certain that she’s the best version of herself, the version worthy of a future. If she is to have any chance of winning, she must stop running not only from her Alt, but also from love . . . though both have the power to destroy her.
In Kersh, every adult is a murderer and every child knows there is another out there who just might be better.” 

ABOUT THE AUTHOR:
Elsie Chapman grew up in Prince George, British Columbia, Canada, before graduating from the University of British Columbia with a BA in English literature. She lives in Vancouver with her husband and two children, where she writes to either movies on a loop or music turned up way too loud (and sometimes both at the same time).