Kelvin of Rud by Piers Anthony 1991 - Serpent's silver & Chimaera's copper
Serpent's silver
A sequel to "Dragon's Blood". In this story Kelvin is the Roundear of Prophecy, but all he wants is a bit of rest. There's not much chance of that however, as his father is imprisoned in a dungeon beyond Flaw, and his brother is entangled with a beautiful girl and a silver serpent.
Chimaera's copper
As a young man, Kevin Knight Hackleberry proved to be the Roundear of Prophecy: he liberated his own Kingdom of Rud from the cruel usurper Zoanna, and then went on to defeat the evil king Rowforth.... But now Zoanna and Rowforth have joined forces to take revenge on Kelvin....through his unborn child. Kelvin's beloved Heln lies helpless in prison...while Kelvin is trapped in a distant Frame World, a captive of the dread Chimaera.
