The Last Sorcerer by Michael Jasper
Series: Contagious Magic.
Approx. 17,680 words.
Published on August 30, 2011.
An old man sleeping in a cardboard box in snowy Chicago holds the secret of sorcery in his head. But thanks to the damage done to him by using magic decades ago, he doesn't realize it. But when two teens try to jump him in an alley, the magic Words come back to him. And soon Chicago has a sudden outbreak of magic on its hands... An earlier version of A Sudden Outbreak of Magic (also an ebook)