From the back of the book: Was her husband a murderer? Alix had come to Castle von Brandt as an anxious, loving bride, proud to be married to Conrad. But suddenly terrible doubts assailed her. She had heard an appalling rumor--that Conrad was still fascinated by his widowed sister-in-law...that his brother's death was no accident. Then Alix discovered the two of them passionately embracing... Desperately she tried to unravel the facts, but as she probed, Conrad only became colder, more hostile. What secret was he protecting? And to what lengths would he go to conceal the truth?
Used availability for Claudette Virmonne's Bound By Honor