High school seniors Aria, Emily, Hanna, and Spencer have always been pretty little liars, but nothing compares to what they did last spring break. It?s their darkest secret yet and their stalker, A, won?t let them forget just what bad girls they?ve been. Now it?s spring break again, and the friends hope they?ll get a break from A on their school cruise. But wherever the liars go, A goes too ? Rough waters are ahead and if the girls aren?t careful, someone may go overboard. Sara Shepard?s fan base continues to grow as the hit ABC Family TV show draws in new readers to the #1 New York Times bestselling series. Full of juicy scandals and jaw?dropping drama, everyone will be eager to see what?s in store for these pretty little liars.