Can anyone help me think of the title of a book that I read last year please? I can't find any trace of it on my Kindle and it's driving me crazy! It's about a group of girlfriends who go to a retreat (possibly somewhere like Nepal) which is actually more of a cult. The friends start to turn on each other and someone eventually ends up falling off a cliff and I think they were presumed dead but it turned out they weren't. Any ideas 