Autumn Drew lives a normal life, in a big house on the outskirts of town, with her adopted parents and three older siblings. It's a regular rainy day in Washington when she finds a secret hidden tunnel in a closet leading to what seems like a whole other world. She learns that a so-called "Emerald Zinx" has been stolen and needs to be found before the fate of the world goes askew. What adventures will teenaged Autumn and her new friend Grace go through to find the powerful magical object?