True Bastard is the fourth book in the Dark Sparrow series You could probably read this as a standalone, but you’ll enjoy it more with the backstory from the other books in the series.
I have to say, I relate to the opening in chapter one where Liam feels like meeting Catriona is a cosmic joke. I have felt that way many times in my life. Things seem to line up perfectly, and then the universe lowers the boom. I felt for the guy, lol.
This story is everything you would expect from this author – great chemistry between the characters, adventure, angst, and romance. Once you start reading, you’ll stay up all night just to finish it!