tl;dr
Second chance romance and a treasure hunt in a will propel a story about coming-of-age and finding one's identity in the diaspora.

Thoughts
I've seen people compare this to The Inheritance Games, and there's definitely a series of puzzles left in a will that may lead to a grand inheritance, along with a complicated family history and a mother/daughter pair making it on their own. But the core of this story is about growing up in the diaspora, coming-of-age, and finding one's place in the world. I think most readers will find something to relate to - that awkward sense of not fitting in, or not being understood is universal. But there will be some readers who immediately click in to the alienation of not knowing the language or the food or the inside jokes from the culture you're from. It's a frank look at living between worlds, and probably my favorite part of the story. The contrast between Gemma's longing to be more connected to the past versus her grandfather's look toward the the future is well-balanced, and I found their stories to be bittersweet. The puzzles were fun, especially the ones that mix languages and math, and the treasure hunt aspect is nicely plotted. For me, the weakest part of the book was the romance, but I've never been a second chance romance enjoyer, I really dislike miscommunication tropes, and love triangles have never done it for me. Yeah, I'm gonna assume that I'm the problem here. Be aware if your romance tastes run in the same direction as mine that you're in for a rough time. But the good news is if you like that stuff, you may have found your next read.

Thanks to NetGalley and Viking Books for Young Readers for an advance copy. All thoughts in this review are my own!