The Last Son of Krypton A central theme of this version of the Superman mythos was that the character was to remain the last surviving remnant of Krypton. Thus, Silver Age elements such as Supergirl, Krypto, Beppo, and Kandor had never existed in this version (though Post-Crisis versions of these elements were eventually reintroduced).
The Last Son of Krypton A central theme of this version of the Superman mythos was that the character was to remain the last surviving remnant of Krypton. Thus, Silver Age elements such as Supergirl, Krypto, Beppo, and Kandor had never existed in this version (though Post-Crisis versions of these elements were eventually reintroduced).