Mark: The Callahan Brothers

In this captivating story set in Brazos Bend, Texas, Emily March brings listeners into the lives of the Callahan brothers as former military colleagues are targeted by a mysterious murderer. Former intelligence officer Mark Callahan teams up with his ex-wife, Annabelle Monroe, a private investigator, to uncover the truth while confronting their complex past and lingering feelings. As they race against time, their investigation leads them deeper into danger, testing their courage and the strength of their renewed connection.