Gateway to Fourline (The Fourline Trilogy, #1)

Years before, a gateway opened between their world and ours. Sending one young woman through may be the key to survival for the kingdom of Fourline.
Strapped for cash, college student Natalie Barns agrees to take a job at a costume shop. Sure, Estos—her classmate who works in the shop—is a little odd, but Nat needs the money for her tuition.Then she stumbles through the mysterious door behind the shop—and her entire universe transforms.Discovering there’s far more to Estos than she ever imagined, Nat gets swept up in an adventure to save his homeland, an incredible world filled with decaying magic, deadly creatures, and a noble resistance of exiled warriors battling dark forces. As she struggles with her role in an epic conflict and wrestles with her growing affection for a young rebel, Soris, Nat quickly learns that nothing may go as planned…and her biggest challenge may be surviving long enough to make it home.