Iron Tribune - The Steam Empire Chronicles, #3

Vengeance was delivered, and Rome was triumphant. At least, that's what the men of the XIII Germania believe. But their commanding officer knows better. Constantine Tiberius Appius defeated the Nortlanders in their capital, but now faces a greater challenge: the overwhelming power of the Mongol Empire. While his allies in Rome struggle to gather support for the weakened Roman army, his enemies plot.
In a surprise assault, the Mongols push through the eastern provinces, leaving death and destruction in their wake. Outnumbered and outmaneuvered, Constantine and his men forge new partnerships and undertake a risky gambit. Can they turn back the unending waves of Mongol men? Or will the east be lost? Find out in IRON TRIBUNE.