Firefight: The Reckoners : Book Two

They told David it was impossible - that even the Reckoners had never killed a High Epic. Yet, Steelheart - invincible, immortal, unconquerable - is dead. And he died by David's hand.

Eliminating Steelheart was supposed to make life more simple. Instead, it only made David realize he has questions. Big ones. And there's no one in Newcago who can give him the answers he needs.