The Sentinel by Avril Borthiry

Haunted by the memories of a tragic betrayal, Turi has been forced to endure a torturous existence. He is a mercenary warrior, his soul tainted by the sinful distractions of a reclusive life. When at last the promise of redemption beckons, Turi returns to the land of his birth, eager to find the peace that has eluded him for so long. Cristen St. Clair is a fugitive. Alone and defenseless, she is easy prey for men who would do her harm - until an enigmatic warrior comes to her aid. It is a fated meeting. Turi and Cristen each have something to offer – and they each have something to hide. But before their shocking secrets are even brought to light, they are faced with another daunting challenge. The Black Death has already decimated the lands across the narrow sea. It is merciless. Deadly. And it has just arrived on England’s southern shores.