I just didn't with this one. Cass's Selection books have never really blown me out of the water, but there's a guilty pleasure element to them. They're readable in the way the best tabloid magazines are, and as they are modeled after the Bachelor that is not meant to be a derogatory comment. 
 If the Siren was Cass's first book it was pretty obvious. The development just wasn't there. I didn't get a sense of the main character. The romance had the hints of something great, but it was rushed insta-love. The pacing was laborious. Lots of time passes over the course of this novel. But not much really seem to happen. The sister's didn't particularly stand out. The concept of the personified ocean wasn't really developed enough for me to get my head around. And the exploration of the sirens was just too surface level for me. 
 Also that we had this line 
 That's really cool that you're going to a traditional school even though you use sign language. I thought I was brave just getting out of state. 
 Like....really? Where do I even start with that line? 
 I thought this would be fun, and for some people it seems to be. Maybe fictional sirens and mermaids and the like just aren't my jam. But my problems with this novel did go beyond the development of the mythology.