Home of the original Charlton comics characters: Captain Atom, Blue Beetle, the Question, Nightshade, and more.
Action Heroes Archives, vol.1- Reprints Space Adventures #33-40 & 42 (March 1960 – June 1961 & October 1961; Captain Atom stories only); & Captain Atom #78-82 (December 1965 – September 1966).
- Action Heroes Archives, vol.2
- Reprints Captain Atom #83-86 (November 1966 – June 1967) & Captain Atom #87-89 (August 1967 – December 1967; Captain Atom stories only); Blue Beetle #1-5 (June 1967 – November 1968); Charlton Portfolio #9-10 (1974; Blue Beetle stories only); Charlton Bullseye #1-2 (1975; Blue Beetle stories only) & #5 (July-September 1976; Question story only); & Mysterious Suspense #1 (October 1968; Question story only).
- Crisis on Infinite Earths
- Reprints Crisis on Infinite Earths #1-12 (April 1985 – March 1986).
Earth Four is merged into the Post-Crisis DC Universe in this story, and much of its history is erased or rewritten in the process.
