This book was a fascinating read, with an original and deeply felt story, and characters fully realized and unique in their quirks, traits, and emotional proclivities. Orna Ross has a beautiful command of the language and a lovely way of rolling out a story, taking us places and introducing us to her characters with skillful, poetic prose.
Set in both Ireland and California, "place" is rich and tangibly created in all its sensorial detail (felt like I could literally smell the green surrounds of Mercy's hometown in Ireland!). I found the sensitive exploration of body image (particularly of females) and compulsive eating issues as related to the daughter, Star, to be compelling and timely. The narrative, with its many plot lines, time jumps, and changes in point of view, was both challenging and intriguing, but I never got lost along the line of "who's talking?" or felt the time jumps took away from the overall story arc. Ross does a good job of defining those jumps, though there were times that the older, more mature Star sounded too far from the snarling, bitter girl of her youth... but that could be forgiven, as one assumes the snarling girl matured and changed over a lifetime. I also had moments when the character of Zach felt almost preternaturally beneficent and holy, to the point that credulity was strained (especially after the central plot twist), but again, forgave it with the presumption that such men DO exist in this world. :)
My only issue with Mercy was her rather unlikely and self-negating choice made at the end, with its subsequent turnaround of her attachment to Zach, and, in fact, an almost a complete turnaround of her personality as we’d come to know it. This was all explained at the end by her daughter, Star, and I think that transformation might have been more believable had it been put in Mercy's words. As it was, Star's telling—in her mature older voice—felt a bit detached, observational rather than experiential, to have such a major character evolution NOT be seen through the pov of evolving character who’d been the main narrator throughout. An author's choice, surely, but one that was not fully successful to me as a reader.
Also, part of that could be the odd little formatting snafu in my particular Kindle copy: I was rolling along toward the end of the book, reading the chapter titled "Starburst," when that chapter rather abruptly ended, with the words "The End" and the following pages filled with copyright and contact information, the usual stuff one finds at end of the book. No reason to believe it wasn’t the end, so I put it down, shaking my head, thinking, "Damn, after such a great book it just ENDS so abruptly and without a conclusion that felt emotionally 'concluding' or satisfying!" This surprised and disappointed me, so much so that later I went back to my Kindle, pulled it up again, and actually scrolled past that "The End" and copyright/contact pages, and EUREKA! there was another whole chapter! This chapter was titled “Starlight” and DID bring the book to a much more satisfying conclusion.
I didn't notice any other reviewers mention this problem, so perhaps it (oddly) occurred only in my Kindle copy, but should you find yourself at "the end" and feel like the book just...isn't (ended, that is! :), odds are good you too have gotten a copy with this formatting snafu. I hope the author sees this and has the opportunity to correct the problem... it's much too good a book to leave a reader feeling unsatisfied and confused at such a pivotal point in the narrative!