Mix fantasy and steampunk and you get the world of the Bloodbound Iron series. In the kingdom of Salentia, magic is a tightly-controlled secret. Prince Reginald harnessed this magic to create machines of incredible power, such as battle walkers, spell cannons, and a colossal mobile fortress. Now, their ancient enemy, the kingdom of Beolo, is determined to learn of their secrets. Reginald won't turn his creations over without a fight, and his half-brother, Kyloth is determined to help. Reginald and Kyloth set out aboard the Eclipse to crush the Beolian invaders, but they have to contend with the greatest military genius in the land. The brothers face battle, espionage, and a skilled enemy, with the fate of their kingdom in the balance.