Recruiting a New Companion: Supergirl

In Peter's memories, this was precisely the period before Crisis on Infinite Earths was about to begin. Crisis on Infinite Earths was a colossal catastrophe in DC Universe comics, one that involved the entire multiverse. The superheroes of every universe would join forces to face an unprecedentedly powerful enemy: the Anti-Monitor. He possessed the immense power to manipulate Anti-matter Energy and intended to use it to devour all Infinite Universes, reducing the entire universe to nothingness.