Thanks to KoolKorra from the forums for informing me of this new Amazon listing. http://www.amazon.com/Endgame-Nickelodeon-Legend-Korra-Junior/dp/0449817342/ref=sr_1_1?s=books&ie=UTF8&qid=1351500973&sr=1-1&keywords=the+legend+of+korra+endgame Some of you may be wondering how on earth there can be a number 2 of these books without a number 1, but if you saw this post from a few months ago you know what this book is.

Endgame Book

Here is the cover of Volume 2 of these Korra Junior Novelisations, this will follow on from Revolution. And we now know what both books will cover. Here is the product description
The Legend of Korra continues the epic action begun in Avatar: The Last Airbender! Fantasy fans ages 12 and up can relive Korra's deadly confrontation with the shadowy villain Amon in this exciting novelization! Endgame retells the dramatic final six episodes of Nickelodeon's hit series, The Legend of Korra. 
The most interesting thing here would have to be the word "retells", does this just mean it is a novel adaptation of events of the episodes or does it mean that it will tell things a bit differently.
Revolution will cover the first 6 episodes of the show in it's 256 pages while Endgame will cover the final 6 episode of Book 1 Air in it's own 256 pages. Endgame is out July 23rd 2013. While Revolution is out January 8th 2013. Both will be written by Erica David. Are you planning on collecting these novels ? They are the first announced mass release pieces of The Legend Of Korra Merch.