Meteor Iron by Mark B. Gilgam

Haunted by the memories of too many battles, Kitt renounces the warrior's way and decides that from now on, he will work as a blacksmith. The legends tell that in Taumeiryale, a city by the river Meira, sleeps a secret of steel, and he wanders there to uncover it.

In Taumeiryale, Maiat, the Higher Order of things, rules in the person of the Sunlord, a ten-year-old boy. Kitt is the only blacksmith there. Tempted by the dark secrets of iron, the young Sunlord befriends Kitt and brings them both into open conflict with the priests of the Temple of Eternal Light. Soon, colossal winged serpents slither through the streets, and not even the golden palace is safe.

Kitt forges the Star Sword, the weapon to end all evil. In taking the hilt, he risks his very soul.