So basically, I dreamt that Dawnguard was a guild.
They're a kickass gang of vamp hunters, and you help them and they're like join us.
They give you a crossbow cus why the hell not.
During your jolly adventures with your new found chums, you venture into a deep crypt full of vampires, convinced there is something inside. You unlock a big coffin, and out pops the Snow Prince. He's like "wow im tired. Thanks for the help buddy

" then a vampire runs over and bites him.
He turns and then declares war on the surface world, armed with vampires AND falmer.
You bassically get screwed.