The "On the Fourth Floor" book is a gripping and intense thriller that will keep you on the edge of your seat from start to finish.

Detective Kim Stone must face her darkest fears as she investigates the deaths of two teenagers found chained to a radiator, with eerie similarities to her own traumatic past.

As the case unfolds, Kim finds herself in a race against time to uncover the truth behind the murders and confront the twisted individual responsible.

With its fast-paced action, suspenseful plot, and well-developed characters, this book is sure to keep you guessing until the very end.

Don't miss out on this heart-stopping thriller that will leave you breathless!