Can't Find a Spell and Can't Remember the Name

Hi, 

Feeling a bit crazy. I remember there being a spell that lets you summon an archive or library, read the book you want, then the book and library disapear.

Was this a thing? Interdimensional  Archive or something? 

It wasn't Legend Lore.

Please Help 

There is no official spell in any edition of D&D that matches that. I must therefore assume it is homebrew or you were misremembering.

Quote from Abby507 >>

 I remember there being a spell that lets you summon an archive or library, read the book you want, then the book and library disappear.

Leomund's Secret Chest?

Sounds like a variation on Magnificent Mansion but more library focused. Although have to agree with others it was probably either home brew or heavily reflavoured 

You could certainly put a library in a demiplane, but that would be a specific library, not an arbitrary library.