What if other worlds existed alongside your own? What if you could travel through them and truly escape reality? Sloan and Harley Glass were born moments apart; but, despite their differences, the sixteen-year-old twins couldn't be closer. They've held their tongues each and every time their mother has uprooted them-often moving across the country with little notice. They've learned to accept change. But what is Mom running from? They discover they're travelers-half-descendants of those who can traverse an entire universe of parallel worlds known as fractals. When the past catches up, Harley is kidnapped and taken to one of those distant worlds. Now, Sloan must garner her courage and find a way to rescue her sister. Traversing the worlds isn't the hard part; it's surviving the elements and the creatures lying in wait to destroy everything in their path. Will the Glass sisters be able to save the fractal worlds from the kidnapper, or will everything fracture and crumble around them?