Fourth Day — Zoe Sharp

For bodyguard Charlie Fox, protecting the innocent is the only thing holding her traumatic past at bay. To cope with wrenching personal loss and guilt, she helps extract a grieving father from a notorious cult in the California desert. But what her team's client isn't telling them will send Charlie deep undercover to infiltrate Fourth Day -- and put her up against ruthless, charismatic cult leader Randall Bane.

Now staying alive means surviving her darkest, most anguished secrets. Finding the truth means risking her career and the man she loves. And to prevent a devastating mass tragedy, Charlie must walk the treacherous knife edge between betrayal and loyalty….