This is the 12th book in the series, after Stunning. Here is the Kobo store summary: It’s spring break, and the pretty little liars are trading in Rosewood for a cruise vacation. They want nothing more than to sail into the tropical sunset and leave their troubles behind for one blissful week. But where Emily, Aria, Spencer, and Hanna go, A goes, too. From scuba diving to tanning on the upper deck, A is there, soaking up all their new secrets. Emily is smooching a stowaway. Aria’s treasure-hunting partner is a little too interested in her booty. Spencer’s going overboard trying to land a new boy. And a blast—or rather, a crash—from Hanna’s past could mean rough waters ahead for everyone. The liars better tighten their life jackets. A perfect storm is brewing, and if they aren’t careful, A will bury them at sea. . . .I say it every time I read one of these books: I love this series! I have so much fun reading that I am willing to overlook the numerous implausibilities and just let myself go along for the ride with Emily, Aria, Spencer, and Hanna.I loved that the book was set on a cruise ship – it was a really fun way to mix things up.The big mystery still revolves around who ‘New A’ is, and keeping the incident in Jamaica a secret, but things get more complicated when Hanna is involved in a car crash at the beginning of the story. She calls the other girls for help and now they have one more secret to keep – and of course, A knows all about it and seems determined to torture them with that knowledge.So there were a number of mysteries in this book, many of which are still unresolved by the end, but I definitely was able to eliminate a couple of A suspects from my list! However, this book definitely raised the possibility of a duo or group of people working together as A. Interesting…By now, I definitely know what to expect from this series, and it never disappoints me. Twelve books in, I feel like there isn’t much left for me to say that I haven’t already about much I love these books, and so my reviews in this series have become shorter and shorter. As always, I’m eager to see where the next book takes things!(From www.pingwings.ca)