
⭐️⭐️⭐️⭐️💫 4.5 stars

Rose and Fern Castle are fraternal twins. Fern relies heavily on her sister Rose and trusts her to keep her calm and in control. Fern, while fully capable of working and living on her own, has a disorder that causes her to experience sensory overload when exposed to too much light, sound or commotion. Rose knows how to rescue her sister from those unpleasant situations and comforts her, and Fern is grateful. Rose is Fern’s “person.”
Rose and Owen’s marriage is in trouble. Rose wants a baby so badly that it’s put a strain on her marriage. Fern could give her beloved sister that special gift. Her new beau, Wally, would be a good candidate. He’s incredibly smart and financially set. He understands Fern’s behavior and still accepts her and cares deeply for her. But one thing he disagrees with Fern on is Rose’s character. Wally doesn’t trust Rose. What if Rose isn’t so special after all?
Secrets, lies, deceit, suspense, excellent characterization and a surprising ending, The Good Sister has a mix of elements that makes it hard to put down. I liked the structure—short chapters composed of present day and intermittent journal entries by each sister. I particularly loved Fern’s character. She was quirky and straight-forward. The book kept me guessing about Rose and Fern—which one was the good sister? I truly enjoyed trying to figure out which sister I could trust. I would have given the book five stars but the ending, although good, was lacking something. I can’t quite put my finger on it but I wanted a little more.
Overall, I loved The Good Sister and highly recommend it.