Publishing History (#1-48) Mysteries of Unexplored Worlds. (#49-50) Son of Vulcan . (#51-60) Thunderbolt . (aka Peter Cannon: Thunderbolt) Collected Editions A Steve Ditko SF/Mystery Giant #1 . Charlton Heroes of the 1960s: Volume 2 (#46-47) Charlton Heroes of the 1960's: Volumes 1 & 2 (#46-47) Myst…