Must Robin really remain firmly locked away in the deepest vault of the Batcave, his name never to be mentioned in polite company again?
More recently, Autopsy on a Dream (ABC1, Sunday 20 October), a controversial BBC television documentary, commissioned in 1968 by David Attenborough and long assumed to have been deliberately destroyed, was located in the Beeb's deeper vaults after lying unseen for 45 years.
I wanted to see how Linda Perry stirred the emotional magic for her artists - and I yearned for a realistic portal into the challenging process of writing and recording music that comes from the deepest vaults of musicians' souls.
As of last week, the Fed's deep basement vaults held about 550,000 400-ounce gold bars.
When the grate collapsed, the woman, Jessica Hinksmon, fell into a 10-foot-deep transformer vault beneath the sidewalk on 51st Street between the Avenue of the Americas and Seventh Avenue.
The first work to grip the viewer is the "neoclassical" library with a deep blue vaulted ceiling decorated with Old Testament scenes but lightened by cherubic angels and other elements.
But dredging deep through my vault of old science concepts, I find hope.
Throughout the last century, the dominant method of film preservation was sticking the master reels into a temperature and humidity-controlled vault deep in the desert.
"She's laughing so hard that even if they locked her in the bank vault, deep inside the subbasement, you would still hear her laughter floating all the way to the street level where Kris Jenner would be in her Bentley double-parked on your soul".
We all thought there would be men on the roof with Stinger missiles until guys in black pajamas with sub-machine guns tore through the NMJIC the National Military Joint Intelligence Center, a vault deep under ground in the C-ring and told us we had been hit.
