Many Worlds

Sixteen-year-old Sasha Lawson has only ever known one small, ordinary life. When she was young, she loved her grandfather's stories of parallel worlds, inhabited by girls who looked like her but led totally different lives. Sasha never believed such worlds were real - until now, when she finds herself thrust into one against her will. To prevent imminent war, Sasha must slip into the life of an alternate version of herself, a princess who has vanished on the eve of her arranged marriage. If Sasha succeeds in fooling everyone, she will be returned home; if she fails, she'll be trapped in another girl's life forever.

Back on Earth, Sasha expected everything to go back to normal. But her old life no longer seems to fit, and her heart breaks daily for Thomas, the boy she left behind. Troubled by mysterious, often terrifying visions and the echoes of a self she was just beginning to discover, Sasha makes the difficult decision to journey once more through the tandem.