Embark on the final, thrilling chapter of this sci-fi series by a USA Today Bestselling thriller and science fiction author Steve P. Vincent. Crucible of Victory, the fourth book in The Frontier Saga, is an action-packed tale of vengeance, military strategy, and the ultimate battle for humanity's survival.

Sergeant Talon Stiler has faced countless threats - traitors, mobsters, and the relentless alien Dioscuri. But now, he knows the target that must be destroyed if humanity is to have a future. 

With the Dioscuri home world finally located, Stiler and the war-weary Terran Union military plan a daring raid to annihilate their foe before the aliens can rebuild their strength and launch a final, devastating invasion.

And wipe out humanity for good…

Crucible of Victory is perfect for fans of space opera, military sci-fi, and alien invasion stories. If you love Joshua Dalzelle (Black Fleet series), Glynn Stewart (Starship’s Mage series), Kevin J. Anderson or Frank Herbert (Dune series) you’ll feel right at home in one of the best science fiction series available today.

New to the series? You can read the first book - Descent into the Void - for FREE.

*** Also in the series ***

Book 1: Descent into the Void (FREE)

Book 2: Ashes of Empires

Book 3: Shattered Union

Book 4: Crucible of Victory