When Jalen finds a mysterious, locked book called The Keypers of the Zodiac in a voodoo shop in New Orleans, she is irresistibly drawn to it. But when she finds a way to unlock it, she sets off a chain of events that shifts the signs of the zodiac to make way for a new one, Ophiuchus.

Not only does everyone’s personality shift as their birth dates place them in a different sign than they were in before, but suddenly Jalen finds herself facing challenges from each zodiac. If she wants to make it out alive, and change everything back to the way it was before, she’ll have to conquer her fears, draw on skills she didn’t know she had, and get help from her best friends.

The 13th Sign by Kristin O’Donnell Tubb goes on a wild ride through the city of New Orleans as Jalen and her friends face one challenge after another while they make their way to Jalen’s grandmother, who is in the hospital. As Jalen faces a challenge from each sign of the zodiac she also must face her fears: of heights, of the reason for her father’s disappearance when she was young, of her grandmother dying, and of her friends changing. Along the way she grows more confident in the decisions she makes and more determined to set things right.

Each time Jalen faces a sign of the zodiac she learns something about the strengths and weaknesses of the sign—and the people who were born under it. She learns that winning isn’t always about conquering, and that sometimes she needs to trust her own ability to make decisions instead of deferring to others.

You’ll find dates for the traditional and the revised zodiac in the back of the book, and it’s fun to think about how your own personality may change if one day you woke up and instead of being a Virgo you were a Leo. Whether you follow the zodiac or not, it could make for an interesting discussion, along with issues of trust, having self-confidence to do what you think is right, and relying on friends when you need them.

The author gave me a copy of this book in exchange for my honest review.