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.
This is my first book from Bonnie Traymore, and I had so much fun reading it. It’s told through a dual POV between mirror twin sisters who are COMPLETE opposites, and it doesn’t take long before you know who the “good” sister is. The story is fast-paced with suspenseful scenes throughout, and the writing style lands somewhere between Freida McFadden and (more intricate writing) David Ellis—perfect for a weekend read!
The story alternates between the first-person POVs of twins Casey and Nora, giving you an immediate glimpse into how different they are. They’re mirror twins with a psychological bond that factors in during a few key scenes. Like many thrillers, it opens with a high-stakes prologue of a tense moment later in the book before backtracking to the start when Nora first disappeared. I loved following Casey as she took the initiative to investigate—first going to the police and then hiring a no-nonsense PI to help her piece things together. Her impulsive, risk-taking nature drives much of the plot and kept me fully engaged. From the moment she decides to travel to Mexico (against warnings) to search for her sister herself, the story gets more intense, introducing several suspicious characters, red herrings, and unexpected surprises!
This isn’t a long read at 300 pages (🎧 under 7 hours), and with short chapters that often end in cliffhangers, you can finish it in one day. You really have to suspend your disbelief at some of Nora’s choices, as they don’t always make sense. She’s emotionally unstable and an unreliable narrator, almost like a soap opera character at times. There were multiple times when I thought the story was wrapping up, only for it to push forward again with new turns and twists that made it even more enjoyable and unique. The ending is drawn out (in a satisfying way), bittersweet, and made me a bit angry—but it makes the book a great option for a buddy read to discuss afterward!
Narrator Performance
The Good Sister by is narrated by seasoned narrators Megan Tusing and Shelley Reece.
Megan Tusing portrays Casey with an urgent and emotionally reactive voice right from the start as she processes her sister’s disappearance and investigates. You can hear the concern, fear, and determination layered into her narration—and you immediately realize that Casey’s the “good sister,” and it’s easy to root for her. A highlight of her performance is how she conveys the evolving dynamic between Casey and PI Hank Mercer. At first, Tusing adds a layer of mistrust to Casey’s tone whenever she interacts with him, but as they work together and get better acquainted, she subtly softens her delivery to reflect the growing trust and fondness between them. By the end, Tusing’s performance makes their connection come across as heartfelt, almost like a father-daughter bond, and you’ll be smiling. Once Casey arrives at the resort in Mexico, Tusing ramps up the tension noticeably—Casey’s inner dialogue sounds more anxious, especially as she has to make risky decisions and interact with guests/staff without blowing her cover. The climactic scenes where Casey is literally running for her life are some of the most gripping—the pacing, emotion, and urgency are all narrated perfectly!
Shelley Reece portrays Nora with a much more emotionally unstable, unpredictable tone, which immediately makes her feel like an unreliable narrator. During scenes at “The Center,” when Nora interacts with Cameron and Dr. Mansfield, you can hear her becoming increasingly unsettled by the environment and regretting her choices—and even though the character is unlikeable, the delivery will make you invested in her survival. Reece’s performance really shines once Nora’s escape plans are in full force and she has to make difficult decisions about her husband. These scenes are narrated with dynamic pacing and lots of tension, keeping you fully on edge. Towards the end, when Nora has an emotionally unsettling vision, Reece’s delivery is especially moving, and I found myself feeling more compassion for Nora. In the epilogue, Reece again shifts her tone to present a more determined, controlled, and grounded character, which highlights Nora’s character arc. Overall, both narrators truly elevate the story and make it an addictive listen that’s hard to put down—perfect for your Summerween playlist!
Narrator Performance
The Good Sister by is narrated by seasoned narrators Megan Tusing and Shelley Reece.
Megan Tusing portrays Casey with an urgent and emotionally reactive voice right from the start as she processes her sister’s disappearance and investigates. You can hear the concern, fear, and determination layered into her narration—and you immediately realize that Casey’s the “good sister,” and it’s easy to root for her. A highlight of her performance is how she conveys the evolving dynamic between Casey and PI Hank Mercer. At first, Tusing adds a layer of mistrust to Casey’s tone whenever she interacts with him, but as they work together and get better acquainted, she subtly softens her delivery to reflect the growing trust and fondness between them. By the end, Tusing’s performance makes their connection come across as heartfelt, almost like a father-daughter bond, and you’ll be smiling. Once Casey arrives at the resort in Mexico, Tusing ramps up the tension noticeably—Casey’s inner dialogue sounds more anxious, especially as she has to make risky decisions and interact with guests/staff without blowing her cover. The climactic scenes where Casey is literally running for her life are some of the most gripping—the pacing, emotion, and urgency are all narrated perfectly!
Shelley Reece portrays Nora with a much more emotionally unstable, unpredictable tone, which immediately makes her feel like an unreliable narrator. During scenes at “The Center,” when Nora interacts with Cameron and Dr. Mansfield, you can hear her becoming increasingly unsettled by the environment and regretting her choices—and even though the character is unlikeable, the delivery will make you invested in her survival. Reece’s performance really shines once Nora’s escape plans are in full force and she has to make difficult decisions about her husband. These scenes are narrated with dynamic pacing and lots of tension, keeping you fully on edge. Towards the end, when Nora has an emotionally unsettling vision, Reece’s delivery is especially moving, and I found myself feeling more compassion for Nora. In the epilogue, Reece again shifts her tone to present a more determined, controlled, and grounded character, which highlights Nora’s character arc. Overall, both narrators truly elevate the story and make it an addictive listen that’s hard to put down—perfect for your Summerween playlist!
The Good Sister by is narrated by seasoned narrators Megan Tusing and Shelley Reece.
Megan Tusing portrays Casey with an urgent and emotionally reactive voice right from the start as she processes her sister’s disappearance and investigates. You can hear the concern, fear, and determination layered into her narration—and you immediately realize that Casey’s the “good sister,” and it’s easy to root for her. A highlight of her performance is how she conveys the evolving dynamic between Casey and PI Hank Mercer. At first, Tusing adds a layer of mistrust to Casey’s tone whenever she interacts with him, but as they work together and get better acquainted, she subtly softens her delivery to reflect the growing trust and fondness between them. By the end, Tusing’s performance makes their connection come across as heartfelt, almost like a father-daughter bond, and you’ll be smiling. Once Casey arrives at the resort in Mexico, Tusing ramps up the tension noticeably—Casey’s inner dialogue sounds more anxious, especially as she has to make risky decisions and interact with guests/staff without blowing her cover. The climactic scenes where Casey is literally running for her life are some of the most gripping—the pacing, emotion, and urgency are all narrated perfectly!
Shelley Reece portrays Nora with a much more emotionally unstable, unpredictable tone, which immediately makes her feel like an unreliable narrator. During scenes at “The Center,” when Nora interacts with Cameron and Dr. Mansfield, you can hear her becoming increasingly unsettled by the environment and regretting her choices—and even though the character is unlikeable, the delivery will make you invested in her survival. Reece’s performance really shines once Nora’s escape plans are in full force and she has to make difficult decisions about her husband. These scenes are narrated with dynamic pacing and lots of tension, keeping you fully on edge. Towards the end, when Nora has an emotionally unsettling vision, Reece’s delivery is especially moving, and I found myself feeling more compassion for Nora. In the epilogue, Reece again shifts her tone to present a more determined, controlled, and grounded character, which highlights Nora’s character arc. Overall, both narrators truly elevate the story and make it an addictive listen that’s hard to put down—perfect for your Summerween playlist!
