User blog:Chambergambit/The Never Ending Pasta

I tried to write a quick little story just to get something out there, but now it's over 2000 words long and not even halfway done. How do people write these 500 word burts of creepiness? What are their secrets? Which comes to my real question. Which is better? A quick and creepy story to give you the shivers before you move onto the next? Or a longer tale that draws you into it's clutches and won't let go?