HEIR TO THE KINGDOM!Return to the world of Kingdom Come as the Flash discovers the fate of Superman'Aos missing ward, Boy Thunder. The Multiverse-spanning World'Aos Finest duo of Batman and Superman rush to Earth-22 to rescue their lost friend, only to discover a world that doesn'Aot know the Multiverse and that is consumed by the thrall of the all-powerful Gog and his disciple, Thunderman!Join Mark Waid (The Flash, Shazam!) as he returns to his bestselling Kingdom Come story with artist Dan Mora (Detective Comics, Shazam!) to tell the origin of Gog and the horrors he created. Collects Batman/Superman: World'Aos Finest #20-24.