relationship with his father and brothers, while the sequel detailed the role of Jordan in the downfall of Sinestro. In the 1992 prestige format graphic novel Green Lantern: Ganthet's Tale, Hal Jordan first encounters Ganthet, one of the Guardians of the Universe. Ganthet asks Hal to help him battle a renegade Guardian who has attempted to use a time machine to change history. Reign of the Supermen, Destruction of Coast City, and transformation into Parallax In the 1993 Reign of the Supermen! storyline, the alien tyrant Mongul and his forces destroy Coast City (Jordan's former home), murdering all of its seven million inhabitants, while Jordan was off world. Angered, he flies to Engine City and attacks Mongul, eventually knocking him out with Steel's hammer. This leads into the Emerald Twilight arc, which sees Jordan using his power ring to recreate Coast City as an instrument in the process of overcoming his grief, and talking to ring-created versions of his old girlfriend and parents. After his ring's power expires, a projection of a Guardian appears and admonishes him for using the ring for personal gain and summons him to Oa (the homeworld of the Guardians and the Green Lantern Corps) for disciplinary action. Angered at what he sees as the Guardians' ungrateful and callous behavior, Jordan absorbs the energy from the Guardian's projection, goes insane and attacks Oa to seize the full power of the Central Power Battery (the source of power for all Green Lanterns), defeating and severely injuring several members of the Green Lantern Corps in the process, taking their power rings as his own and leaving them to die in space. He arrives on Oa and kills Kilowog, Sinestro, and all the Guardians except for Ganthet, who was protected by the other Guardians and survived without Jordan's knowledge. He then renounces his life as Green Lantern, adopting the name Parallax after absorbing the Power Battery's vast powers. Ganthet designates Kyle Rayner to replace Jordan as the Green Lantern of Earth when Rayner comes into possession of the last power ring, created from the shattered remains of Jordan's. Guy Gardner has visions of the Green Lantern Corps' destruction and his yellow power ring's energy (being powered by residual Green Lantern's energy) starts to fluctuate. Soon after, Gardner goes to Oa to investigate, bringing Martian Manhunter, Darkstar (Ferrin Colos), The Ray, Wonder Woman, Captain Atom, Alan Scott and Arisia with