There are no light sabers, telepathy or warp drives here. No hyperspace or jump points, either, just the hardest science we know to show how space war might really take place.

This is it: the genocide campaign. Chief Marshal Assur wants it all, victory over Earth and immorality for the Valiants.

The plan is brutally simple. Some call it the Dinosaur Initiative. Crash three asteroids into the planet, wiping out the human race the way most of the king dinosaurs perished eons ago.

The Valiants will guide the powered asteroids all the way to Earth with their new and improved fleet.

Those of Earth must put aside their differences and build a fleet big enough to challenge the Valiants and stop the asteroids. If they fail, it’s game over for the human race.

The plans are simple: the fighting will be everything.

EXTINCTION ORBIT is the fourth book in the GRAVITY WARS series, written by bestselling author Vaughn Heppner.