The Story: "Where Valor Fails...Will Magic Triumph?" by Denny O'Neil, Dick Dillin, and Joe Giella. As the heroes from both earths fall victim to the same problems(i.e., when one hero falls, the corresponding hero on the other Earth falls too), Black Canary decides to sacrifice herself, thinking that will save both Earths.
Meanwhile, Dr.Fate and Johnny Thunder summon The Spectre who they believe is the only one who can stop the two Earths from colliding!
The Spectre in fact stretches and grows, and places himself between the two worlds. The two aliens who started all this in the first place try and counter, forcing the Spectre to use up all his energy to keep the Earths apart, dying in the process!
But can The Spectre ever truly "die"?
Roll Call: Superman, Batman, Green Lantern, Green Arrow, Atom, Hawkman, Black Canary
Notable Moments: This is one of those issues that featured those two-page "DC Surveys", where they're tried to find out more about their readers. These were my answers I gave at the time, around 1984 or so I'd say:
...apparenly the young Bob Kelly wasn't that interested in "Black People"(my best friend at the time was black, maybe that was it?), yet very intersted in "Romance"(I didn't have any contact with that), and somewhat into "Sports", Baseball especially. Hmm, am I sure it was actually me who filled this out?