DNF - 52% 
 I may or may not finish this book later just as I may or may not change my opinion about it. So pls be aware of that. 
 It was so fucking unnecessary to write this book. It should've been a duology. I remember reading the first one in Russian and liking it mostly because of the fish(ish?) jokes. I kinda loved the characters(in the first and the second novels), but this "story" is a flop. Probably never ever will read a book about mermaids again.