Steelheart by Brandon Sanderson. This fast-paced, futuristic science-fiction superhero story is the first in a series. When David was six, an unexplained explosion in the sky caused perpetual darkness and ordinary people to gain supernatural powers. These people became known as Epics. Two years later, David witnessed Steelheart, one of the most powerful Epics of all, murder his father. In the 10 years since his father's death, David has made it his mission to get his revenge.