The Gardens of Nibiru (The Ember War Saga)

Earth defeated the Toth invasion. Now humanity takes the fight to the aliens. 

The supreme Toth overlord, Mentiq, rules his species with an iron fist from his fortress on the planet Nibiru. The first overlord surrounds himself with decadent treasures and the galaxy's deadliest warriors to protect his dominion from treachery and attack.

Armed with stolen Toth technology, the Breitenfeld travels to the world with a single mission: assassinate Mentiq and end the Toth threat to Earth.

What secrets await Lieutenant Hale and the Breitenfeld in THE GARDENS OF NIBIRU?

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Q&A with Richard Fox: 
How would you describe The Gardens of Nibiru?
In as few words as possible: Tears of Sun meets The Expendables.
How long do we have to wait for the next book?
The next chapter in the Ember War Saga, The Battle of the Void, will be out in June, 2016. 
If this was a movie, what would it be rated?
PG-13 for some language and intense action.