Spirit of the Slug Lord
From A KoL Wiki

Deep within the Alley, you feel a strange presence. A ghostly blur appears before you, introduces himself as the Slug Lord, and recites a poem:
I had a home secure and dank
'Til salt got flushed down the septic tank
Now I'll no longer make romance
But you can still get in my pants.
He gives you a map.

Occurs in the Sleazy Back Alley.