Topic: Favorite H.P. Lovecraft story

I adore Lovecraft.  The Grandfather of Modern Horror in my opinion.  If you'd like to know more about H.P. Lovecraft please check out Wikipedia's page on the HPL here.

So my favorite story is a short one.  It's called The Festival.  I've read this story out loud to people over the years and the story is just a great, great read.  And if you don't like to read long stories it's only about ten pages long so your voice doesn't get hoarse and your eyes won't bleed.  That is like a win-win right there.  I would say so, indeed.

What is your favorite H.P. Lovecraft story?  Sound off Dear Readers!