The Last Ferry Out — Andrea Bartz

On a trip to the tropical paradise where her fiancée died, a young woman begins to suspect the death was no accident -- and the killer's still on the island -- in this twisty thriller from the New York Times bestselling author of Reese's Book Club pick We Were Never Here.

When Abby decided to come to Isla Colel, she wasn't sure what -- if anything -- she'd find. She only knew that she needed to see the place where her fiancée, Eszter, died, to try and make sense of everything that happened. 

The island is nothing like Abby expected; though it was once a bustling tourist hub, a hurricane a few years earlier left it a shell of its former self, with only a few locals and expats remaining. Even the once-daily ferry to the mainland now only runs every week or so.

There, Abby befriends an alluring group of expats, but her sense of unease surges when one of them says he knows the truth about Eszter's last days.  Before she can see him, though, he vanishes from the island. Hours turn to days with no sign of him, and the other expats are chillingly cavalier about his disappearance.

As her quest for the truth unearths dark secrets, shady pasts, and a web of lies, Abby grows more determined than ever to find out what happened to the love of her life. And the deeper she gets in the close-knit expat community, the more she suspects one of them is Eszter's killer -- and will do anything to keep the truth buried. But will she discover who it is before she becomes the island's next victim?