Season of Shadows. Yuletide Kisses, #2

Felicia Adler has built a quiet new life, far from the shadows of espionage and heartbreak. But when her mother disappears under suspicious circumstances, she's thrust back into a world of secrets and face-to-face with the man she never stopped loving. Sebastian Harrington, a relentless investigator for the Metropolitan Police, has sworn to bring a thief to justice. But when his search leads him to Felicia, the woman who once betrayed him, he's torn between duty and the aching pull of his heart. Haunted by ghosts of the past, both real and spectral.
Felicia and Sebastian must work together to uncover a dangerous plot. Yet as Christmas draws near, forgiveness may prove the most elusive mystery of all.