Mirrored Realities

Catelyn is still in high school, but she plans to be an astrophysicist like her father. When he disappears, her mother insists that everything is okay.Catelyn accidentally stumbles through a portal to an alternate reality where she finds that her mother was very wrong.It's impossible to know who to trust. Even the other Catelyn is suspect.Can Catelyn rescue her father from a government run by a military dictator who'd do anything to get his hands on the portal between the realities?