The Good Sister

By: Bonnie Traymore

Narrated by: Megan Tusing, Shelley Reece

When her mirror twin goes missing, Casey is led to a deadly paradise where no one escapes…

Casey and Nora are mirror twins; identical—sort of. Casey is right-handed, Nora is left-handed. Their moles sit on opposite cheeks. In terms of personality, they are also diametrically opposed. So, when her high-strung sister disappears after a fight with her husband, Casey shouldn't be as concerned as she is. Nora's done it before. Her husband seems nonplussed. But this time, things feel different. It's a twin thing; Casey knows it in her bones. Something is terribly wrong.

Casey hires private investigator Hank Mercer, and Hank discovers that Nora's been on the dark web—lured by an entity that calls itself Switzerland, promising to take away your pain and leave you in a state of eternal bliss—for a hefty fee. The trail leads to a luxury wellness retreat hidden in the Mexican jungle. Determined to find her sister before it's too late, Casey poses as a resort guest and heads to Mexico to rescue her sister. As Casey digs deeper, she finds something far more sinister than she could have imagined, and it's possible that neither of them will get out alive.

A dark, pulse-pounding psychological thriller from Bonnie Traymore.

©2026 Bonnie Traymore (P)2026 Podium Audio

The Good Sister by Bonnie Traymore 👯‍♀️🖤🌴🔪🎧📖

The Good Sister by Bonnie Traymore 👯‍♀️🖤🌴🔪🎧📖 ~~ I read this on Kindle and listened on Audible, and this one definitely kept me wondering what in the world was really going on! 😳 Casey and Nora are mirror twins who may look almost identical, but their personalities couldn’t be more different. When Nora suddenly disappears, Casey knows something isn’t right. Everyone else may think Nora is just being Nora, but Casey can feel that this time is different. That twin connection between them was one of the things I found most interesting about the story. 👯‍♀️❤️

Casey’s search for Nora takes her from a private investigator to the dark web 💻 and eventually to a mysterious luxury wellness retreat hidden in the Mexican jungle 🌴. What sounds like paradise quickly starts feeling anything but peaceful. The deeper Casey digs, the stranger and more disturbing everything becomes, and I kept questioning who could actually be trusted. 😬

I also liked that the story gives us both Casey and Nora’s perspectives because these two sisters see their relationship and their past VERY differently. There is love between them, but there is also resentment, guilt, jealousy, hurt, and years of complicated family history. It made me question whether there really was a “good sister” at all. 🤔

The psychological side of this story was dark, and there were definitely some moments that made me uncomfortable—which is exactly what I want from this kind of thriller. 😂 The story deals with some heavy subjects involving mental health, grief, family relationships, and how badly people can want an escape from emotional pain. The wellness retreat and the mysterious “Switzerland” added another creepy layer because you know something is wrong long before you understand exactly how wrong it is. 😳🖤

And that ENDING!! 😱 I am not giving anything away, but Bonnie Traymore got me. Just when I thought I understood where everything was going, there was more waiting for me. This is definitely one of those books where you finish and start thinking back over everything you just read. 👀

🎧 The Audible narration by Megan Tusing and Shelley Reece was excellent. Having two narrators worked perfectly for Casey and Nora because it helped give each sister her own identity and personality, especially with the story moving between their perspectives. Their performances added emotion and tension and made the suspense even better. 🎧👏

If you enjoy psychological thrillers with complicated family relationships, missing-person mysteries, dark secrets, creepy retreats, and twists that keep changing what you think you know, this was a really good Kindle/Audible combination. 👯‍♀️🌴🖤📖🎧