The electronic helmet that Alexis Luthor puts on that drives him insane.. in the very, very, very last .. issue #823 .. pre-crisis Superman comic book that ever existed.. (.. the very, very next Superman comic book after that was the very first post-crisis Superman comic book..).. the Superman Action comics... (.. I believe it was Action comics..).. the Superman Action Comics (?) .. comic book where Alexis Luthor puts on the electronic helmet that drives him to an insanity that leads him Alexis Luthor.. to his death.. that .. issue #823 Superman Action comics comic book is called.. the title.. "Whatever happened to the Man of Tomorrow".. Alexis Luthor died in the very last pre-crisis Superman comic book.. (.. Action comics..).. ever published before the post-crisis began.... the electronic helmet that Alexis Luthor puts on that drives him insane.. that electronic helmet is.. The Map Room Dawn...