Currently I'm going through new ways to market my sites and blogs. One thing that I've come across which sounds the most interesting is Growth Hacking. Here's what it is, what it can do for you and suggestions on where you can learn it.
One way to create a plot twist is to steer the reader to a certain ending or event and then change it completely to something unpredictable. You can also take a scene in the book and tweak it into another direction and see what happens.