I usually find Titchmarsh very readable, if somewhat slightly soppy.
I enjoyed this book up to the point where the relationship between the two main subjects, Jamie and Missy, became intertwined as a result of their parents ancient infidelity / sexual relationship.
The essence of the story was that this couple were in love but they could not continue their relationship as it had been revealed that Missy was the illegitimate daughter of Jamie's half brother. In other words his half blood first cousin. However in English Law, since the time of Henry V111, who had married his first cousin (and had had the law changed to facilitate it) such marriages have been legal & permissible.
Instead of letting the story develop naturally, the writer added the incredulous plot that Missy herself was the illegitimate product of her dead mother's infidelity with the former best friend of of her husband. Fortunately he had killed off the errant couple but it didn't stop it from leaving me with my questioning this unbelievable and incredulous novel.
All in all a little disappointing and I know that Titchmarsh can do better!