2.5 stars. Unfortunately not my cup of tea. Although well researched (set in remote Scotland) and told through three first person character voices, it was too slow for my liking and the interchange in times didn't feel smooth. I also couldn't warm to the mythical elements of the "Selkies" (mermaids) and the mystery and hidden clues weren't enough to keep me entertained. The writing was good but I struggled through this from start to finish. I can understand some of the more positive reviews, but this one just wasn't for me. 
 I received a free copy of this book for review via Goodreads first reads (thank you!)