Earth-12

"Since time immemorial, the Green Lantern Corps... has served as the keepers of peace, order and justice throughout the universe."

- Tomar-Re

Earth-12 was one of the many universes in the Original Multiverse. It was destroyed during the Crisis. It was later recreated in the New Multiverse.

The Crisis
During the Crisis, Felicity Smoak, The Ray and Nyssa al Ghul were transported to Earth-12 by the Phantom Stranger to request that the Guardians allow Felicity to read the Book of Oa so that she could identify the Paragons.

While preaching their case, Oa was attacked by Shadow Demons and The Ray and Nyssa along with Green Lantern Corps members, Kilowog, Tomar-Re and Sinestro fought against them while Ganthet took Felicity to the Book of Oa. She was dragged in by a Shadow Demon and while there she learned the names of two Paragons, Supergirl and Sara Lance, and clues to the identity of two others. She got out with the help of Ganthet and returned to the Waverider for an examination.

Earth-12 was later destroyed along with the rest of the Multiverse.

Recreation
During the Crisis, Oliver Queen and the Paragons recreated the destroyed multiverse. Among those universes in the recreated multiverse is Earth-12.

Residents
See here.

Locations

 * Earth
 * Oa
 * Moon