Books in the Eight Realm series

Seventeen year old, Sierra Winslow buys an unusual book from a used bookstore, with a strange inscription scrawled in the back.After reading the inscription aloud, everything changes and she is swept into a world of magic and wonder as her cat is transformed back into the queen of the Eight Realms and transports them to her home to face the chaos and the ultimate betrayal.Caught up in the middle of the unrest, Sierra discovers that she processes the ability to perform magic, and trains to assist the queen in battle to retake her kingdom and learn the secret behind her magic.