I don't know if my expectations were too high or what, but I was not a huge fan of this book. It was kind of like the Disney movie Atlantis, huge potential = major letdown. I had such high hopes for this book. Sirens?! A city under the sea?!? What could go wrong?! Apparently everything, because I was unimpressed with the whole thing. Rio and her sister Bay have always lived Below in Atlantia, but for as long as she can remember, Rio has wanted to go above. When her mother dies Rio promises her sister that she'll never leave Atlantia, but that all backfires when her sister abandons her and goes Above instead. Now Rio is stuck Below and filled with doubt. Why would her sister leave her? Was her mother murdered? How can she sneak above? To top everything off, Rio is a Siren, but she hides it from everyone because it's dangerous and could mean a life of servitude. Will Rio find the answers she's looking for? Will she unexpectedly find love along the way? Will she ever make it Above? Read if you really want to find out. If not... you're not missing out. Great concept, but... it just doesn't mesh. Something is off about this story.