The Choice of Magic by Michael G. Manning

The ancient magic of wizards was anything but dark. It was the enlightenment that lifted humanity from the squalor of superstition, and the worship of fell spirits and capricious gods, but those days are gone. The shining glory of the sorcerers burned away the subtlety of wisdom, replacing it with easy power, held only in the hands of the elite—a new age built upon the elemental supremacy of aristocrats and the ignorance of the masses.

But this will change, for the greatest power comes with knowledge, and the deeper teachings of wizardry have not been utterly lost. The last wizard of the old tradition still survives in solitude, nursing tired grudges and waiting for death.

His passing might have gone unnoticed, but for the imposition of a youth too stubborn to accept his refusal to take an apprentice. With a new student comes new hope, and that hope has caused old powers to stir again. That the world will change is inevitable, but the shape of the future is anything but certain.