I Can no longer Imagine I Missed This

It used to be no longer in my collection help in the 1960s, and though I am a Batman fanatic, I come what might possibly disregarded finding out this story even after I purchased the reveal:

But it completely finally ends up being an fabulous reveal for me.  For starters, there is a Riddler clue:

That one is never any longer going to be obvious to you, nevertheless it’s to me, because it refers to my birthday: March 4th (March Forth!)  But it completely doesn’t turn out being a Riddler story, or a Getaway Genius story as implied by the hide.  In actuality it’s the closing Outsider story:

I talked relating to the Outsider sequence years ago; I in actual fact thought I had learn them all.  I am a miniature chagrined to uncover that there used to be one more story.