Justice rarely moves in straight lines. For Texas investigator Rowan Grace and Irish detective Aidan Murphy, every case leaves a mark and every threat reshapes the ones who stand in its path. After surviving bombs, gunfire, betrayal, and the kind of choices that strip away any illusion of safety, their unlikely partnership has become something forged in truth and endurance.Now, as new enemies rise from the shadows, Rowan’s grit and Aidan’s quiet steadiness are tested in ways neither expected. Together they face danger, darkness, and the deeper work of becoming who they were meant to be. In this chapter of their journey, strength meets compassion, courage meets faith, and grace meets grit.Detectives That Cross Oceans: Book Four - Grace and Grit is a story of loyalty, resilience, and the kind of partnership that refuses to break.