top of page

Seventeen-year-old Harper Chandler thought she'd seen the last of terrorist Wyatt Mitchell after he'd been locked up for his long list of crimes, including the murder of her nettlesome and completely clueless neighbor.


Boy, was she wrong.

When a suspicious man shows up at her mother's funeral, Harper takes matters into her own hands to find out what he wants, leading her to prison where she meets face-to-face with her number one enemy, Wyatt. Though Wyatt can't be trusted, when he claims knowledge of an upcoming terrorist attack bigger than Harper can ever imagine, she and her colleagues at Dogwood Protection Services (DPS) can't turn a blind eye.

Their mission takes DPS to the new capital of the U.S., Las Vegas. As Harper tries to uncover the terrorist plot, she must battle the uncharted territory of grief, along with her wavering feelings for her boyfriend and a nagging sensation that they're missing a big piece of the puzzle.

If Harper can't get her emotions in check and learn to trust her instincts, thousands of lives will be lost, along with her relationships with everyone she holds dear.

Harper Unhinged by Jo Cassidy - Harper Series

  • Review

    Across genres, Cassidy keeps things tight, funny, and suspenseful! Loved this second installment, getting to know our beloved characters better, and looking forward to the third! - by Cammie, Goodreads


    Harper is a teenage Le Femme Nikita and James Bond all rolled into one! The book is a non-stop action thriller that left me so hyped up that I had to force myself to put down the book and sleep. I can't wait to read more in this series! - by Lynn, Goodreads


    I got to read an advanced copy, and I cannot stop thinking about this book. I reread Harper in anticipation for it and I think they are best read back to back. The characters, the world, the plot... all of it zones together so nicely. Somehow Jo Cassidy manages to write what seems like a typical plot and turn it into something absolutely amazing and SO fun. - by Nathaniel, @hecticreadinglife, Instagram

bottom of page