Earths One and Two both had a pair of timeless lovers, who lived both in ancient Egypt and in modern day. Tied to them were two objects of power, the Orb of Ra and the Crystal Dagger of Hath-Set... designed from alien metals that imbued upon those exposed to them awesome abilities. And in the 20th century, these pairs were linked to elemental beings as protectors of humanity while their own was stripped from them, reluctant heroes. Meet those couples... Rex Mason and Sapphire Stagg... Khufu and Sheira. And witness the birth of Metamorpho the Element Man and the Sandy the Golden Boy.
Rex Mason was a world traveling treasure hunter who found himself in the employee of the unscrupulous Simon Stagg. On one assignment, Rex was trapped inside an Egyptian pyramid, due to machinations of his mischievous boss. This left him exposed to the meteorite known as the Orb of Ra. As a result, Metamorpho was born, capable of transforming his body into any variation of the scores of elements found in nature. Until a cure was found, Rex agreed to become a reluctant superhero on Earth-One.
Metamorpho the element man as a new life form with Mason's memories was the counterpart of the silicon creature that once was Sandy Hawkins the golden boy. When his guardian, Wesley Dodds aka Sandman tested a silicoid gun which prematurely detonated, bathing his young ward in its radiations, the gigantic sand monster was born. Kept in suspended animation for decades, he was revived when the Justice Society aided Dodds in reuniting with Hawkins and soon regained his humanity. Then Sandy Hawkins reverted back to being the counterpart of Tommy Tomorrow from Metamopho's future.
Khufu was an ancient prince of an Egyptian dynasty under threat by his mortal enemy, the Priest Hath-Set. Although he was able to reunite with his beloved princess Shiera , both were tracked down by the wicked priest and his minions. Using a crystal dagger of nth metal, both royals were slain. Centuries later, their memories were transplanted into the minds of Carter Hall and Shiera Saunders, who would become the heroic couple known as Hawkman and Hawkgirl of Earth-Two. It would be Hawkgirl who teamed up with Sandy to locate Hawkman and Sandman, honorary Justice Socialites like Metamorpho was with the Justice League.
Metamorpho himself journeyed back to ancient Egypt alongside his allies of the Outisders, pawns of Hath-Set's doppleganger the priest Ahk-Ton, who sought Khufu's cosmic twin Mason as Metamorpho to be his royal pawn, becoming king of Egypt. However, Shiera Saunder's counterpart Sapphire Stagg swayed Rex back to his sane self once more, and they returned to the 20th Century.