behind a door identical to that of the pre-Crisis Fortress. By that time, however, a more physical Fortress had been reintroduced. In Action Comics Annual #2 (1989), Superman, on a self-imposed exile to space, was entrusted with a Kryptonian artifact called the Eradicator, created by his ancestor Kem-El. Dedicated to preserving Krypton, this device built a new Fortress in the Antarctic as a precursor to recreating Krypton on Earth. Superman broke the Eradicator's control, but maintained the Fortress as a useful location for emergencies. The first appearance of this new post-Crisis version of the Fortress was in The Adventures of Superman #461 (December 1989). It contained many artifacts from the post-Crisis version of Krypton, most notably a number of robot servitors (one of whom, Kelex, became a trusted confidant) and a battlesuit from the Third Age of Krypton. This Fortress was cast into the Phantom Zone as a result of a battle between Superman, Lex Luthor, and Dominus, a villain who played with Superman's mind and who was also trapped in the Phantom Zone. It did, however, serve as the template for the next Fortress, built by Steel, which was an extradimensional space accessed through a vast puzzle-globe. The now-mobile Fortress was relocated somewhere in the Andes. In the DC One Million series (1998), Superman's Fortress of Solitude in the 853rd Century resides within a tesseract located at the center of Earth's sun. By this time, Superman has lived in self-imposed exile within the Fortress for over 15,000 years. During the "For Tomorrow" story arc in 2004–05 Superman comics, Wonder Woman breached the Fortress in an attempt to confront Superman, causing the Fortress to self-destruct. Superman subsequently established a new Fortress in an ancient temple on a remote village in the Cordillera del Cóndor Mountains, on the border of Ecuador and Peru. This version of the Fortress is visually similar to the earliest "Secret Citadel" from Superman #17. The final version of the post-Crisis Fortress was home to Krypto and his dog-sitter Ned (the last remaining Superman robot), and contained a version of Kandor, a portal to the Phantom Zone, Kryptonian and alien artifacts, and holographic images of Jor-El and Lara. The caretaker of the Fortress was Kelex, a Kryptonian robot that was a descendant of the Kelex robot that served Jor-El. Infinite Crisis In the 2006 limited series Infinite Crisis, several survivors of the pre-Crisis multiverse – the Earth-Two