Armed with a magic amulet which bestows eternal life on the wearer, a powerful knight protects the fortress of Grimhold, where the magical people of his world reside. But when his closest friend is pulled into the evil sway of the Devil's Armor, only the Sword of Angels can defeat it.

John Marco's debut fantasy series, Tyrants and Kings, earned him a Barnes and Noble Readers Choice Award and has since been translated into numerous languages around the world. In addition to his work as a novelist, he is also a technical communicator, an enthusiast of military history, and a student of psychology. He often spends his free time biking through the parks of his native Long Island, where he lives with his wife Deborah and his son Jack.