Sally Wentworth’s “Satan’s Island”
My only complaint on this one is that the photo on the front does not fit the description of the guy in the book. He should be much broader. Otherwise, an exciting story with a lot of turns but the sadistic side of me wishes it kind of would have ended differently, I won’t say how because it would be a spoiler.
The next book is Madeleine Ker’s “The Wilder Shores of Love”