In fact, this may well stand as the one Batman-related work of fiction he ever created all by himself.
I'm pretty sure he didn't carve the marble and engrave it himself!
Ah well, at least there's is a certain poetic justice in that a guy who relied so heavily on "ghosts" is now one himself!
The big joke is, now that Bob Kane is dead, he can hire himself as a ghost.
Wait, does that even make sense?
:?