Its a very odd story, becuase its pre-crisis charcteres but told in the post crisis formate. The Object is the same device that becomes the eradicator in the post crisis. I like the way Jor-el discovers the Multiverse and then the phantom zone by trying to make a bridge to another universe. I recall a Nightwing/Flamebird story from the Sperman Family where an evil Jor-el escapes his universe to make it to Kandor or something (?) Anyone ?