How do I get into L-space?

Hint 1 of 10:

Before you can get there, you need to learn about it.  An unlikely character
will tell you about it.

Hint 2 of 10:

Talk to the sleazy guy, and go through all of the options.  One of them will
bring up something about L-space.

Hint 3 of 10:

L-space is located in the library.

Hint 4 of 10:

So talk to the librarian about it.

Hint 5 of 10:

L-space seems to be a rather touchy subject.  You're going to have to give
the librarian a *lot* before you get him to talk about it.

Hint 6 of 10:

It seems to me that the game thinks there was a clue to this puzzle.  If
there was, I missed it.  Read on to find out what you need to do.

Hint 7 of 10:

The sleazy guy will sell you the information.

Hint 8 of 10:

But only for all the gold in the kingdom.

Hint 9 of 10:

Fortunately, the dragon just happened to have the gold on him.

Hint 10 of 10:

Give the sleazy guy all of the treasure that you found in the dragon's lair,
and he'll give you a gold banana.  Fair trade, eh?