Twist endings has been a tool utilized by many fiction authors for years now.  Achieved well, it might probably create a really satisfying emotional ending for the reader.  Achieved poorly, every part that led as much as it'll end up being a waste.

Here are some issues to watch out for:

   1. Importance.  The twist ending should really feel important throughout the context of the story.  As in, it should clarify the occasions that preceded it and the questions the readers fashioned as a result of them.  If the readers invested emotion into the story, the ending ought to tie every thing neatly, moderately than merely explain away one or two major facts.
   2. Logic.  The twist ending must be logical.  That is where it gets dicey, as many writers find yourself patching holes when they realize their ending isn’t exactly 100% air-tight.
   3. Effect.  All key characters and events ought to be related to the ending.  In any other case, they'll feel immaterial to the story - a waste of time.

   4. Set up.  Make sure you set-up the twist ending correctly, such that all the pieces instantly matches as soon as the revelation has been made.  It’s very straightforward to trip on this finish, so make sure you overview all occasions that you have previous the finish.