The rending crash of a collapsing bridge sent a train full of passengers plunging to their doom -- all but engineer Alan Scott, who was protected by the sorcerous spell of a green-glowing lamp! Under its mystical command, Scott formed a ring from its metal and used its emerald energy to defend Gotham City, exposing the dark deeds of the unjust with the light of the Green Lantern!*
*Source = back of card.