The Books of Time
The Union Rejected
Volume 4 of 4 of DOOR, the first of The Five Books of Time

I am currently writing Chapter 29. I would guess this is about a third of the way through.
The opening chapters will be availabe for dowload soon.
Once I am finished, the trade-paperback edition will be available directly from the publisher, and will be available at Amazon.
The Kindle eBook edition will be found at Amazon.
The Nook eBook edition will be available at Barnes&Noble.