Abe's Exoddus is NOT part of the Quintology. Imagine they did a special between 2 series' of a TV show. That's what Exoddus was. Bonus content that adds to the story, but isn't part of the core structure. I thought everyone knew that?
A screengrab from the old official site:
![](http://i.imgur.com/jP72i3D.png)