Thank you to NetGalley and Harlequin Trade Publishing for an advance reader's copy in exchange for an honest review!

This story follows two sisters, Sophie and Evelyn, who were once incredibly close and climbed mountains together, but have not spoken in two years after Evelyn had an affair with Sophie's husband. Now, they accidentally end up climbing the same never-before-climbed mountain, and through a series of unfortunate events, they end up having to try to save each other's lives in the middle of a bad storm.

I really loved this book and found it pretty profound. Most of the book takes place on the mountain as Sophie and Evelyn try to summit, and the action is fast-moving and accessible despite the technicalities of extreme climbing. The flashbacks are necessary context for all the relationships, and I always felt like they added something to the plot. I appreciated that this was really a story about family and about reconciling who you thought you would be with who you are, and I was rooting for Sophie and Evelyn to mend their rift. Sophie and Evelyn are both complicated, interesting characters, and the author does a good job of letting them get it wrong and try to fix it and not know themselves.

A note of caution: this is not a light or easy-breezy book. It engages heavily with the dangers of climbing a mountain, and the characters experience trauma and grief throughout. It is a really satisfying read, but definitely intense.

I was really hoping there would be a resolution for Evelyn and Sophie - I really thought they were both going to make it off the mountain and work through their issues. But then Evelyn cut Liam loose (even though she definitely had to do it, her internal monologue was certainly correct that Sophie might have been able to forgive her eventually for having an affair with Miles but would never forgive her for being responsible for Liam's death), and then Evelyn had a heart attack and died?? I just did not see that coming, and although I can see the narrative power of it - Evelyn realizing she had come all that way to make sure her sister could live and so she could have her atonement, Sophie letting go of her anger towards Evelyn when she gave up her life for hers - it was definitely a really sad note to end on, and it left me feeling a bit down.