This book absolutely destroyed me in the best possible way. This entire story is beautiful, from the breathtaking cover to the deep, winding story between its pages. The twists and turns took me on a journey, and I continue to be blown away by Joan He's work. I had high expectations after her amazing debut, and she completely went above and beyond!

This dystopian thriller with a focus on ecosystem and science follows two sisters: Cee, who has been trapped on an island for three years with no memories except the need to find her sister, and Kasey, a girl living in an eco-city floating above earth as a refuge against climate change. The dual POV switches between the sisters, with Cee's being told in first person and Kasey's being told in third person. This was a really interesting decision that was pulled off very well and really helped the two POVs be completely distinct. It also lent itself incredibly well to the characterization of the two girls. It's easy for readers to become attached to the first-person, charismatic POV of Cee, who follows a familiar dystopian storyline of a main character who does everything they can for their younger sibling, but in this book, Kasey is the one who controls the story. I loved seeing how tropes were turned on their head and again, the twists and turns?! None of the comp titles to this book lie!

I loved how different the two sisters were, and the side characters surrounding them were so real. You will never see side characters who are only there to further the main character's journey from He. In fact, you're far more likely to have side characters working against them! I loved how the sisters tangled with the boys in their lives as well, and though this story certainly does not have a completely happy ending, it felt so real. This truly was the book I've been waiting for, even though it broke my heart into an unmanageable number of pieces. Will I ever recover? Most likely not, but that's the beauty of Joan He's writing.

Speaking of, I am again stunned by Joan He's poetic prose. There are definitely passages I had to re-read to understand, but there are infinitely more that I re-read because the words were just so beautiful. Each phrase seems to be chosen so carefully to immerses you into the world even more. This book was crafted so perfectly and I am completely in love with it. I can't recommend it enough. This has joined her first book as one of my favorite books of all time and I WILL be yelling at people to read it before, during, and long after release day!!

I received a digital ARC through NetGalley in exchange for an honest review.