I'm having trouble finding this Demon Door, where is the grey house? the only place i can think of is the manor right where she walks around but i couldnt find a demon door in there can anyone help me?

The entrance to Grey House is in Barrow Fields. After the Arena, you're given a quest to meet Theresa there.

The Grey house is so cool! It's the most creepiest region I have ever explored in Fable, And ever will! The very first time I went from Barrow feilds to the Grey House in year 2005 when I was still a noob to Fable the forest started turning grey and ghostly and the trees started turning black and dead. I kinda freeked out tiney bit! I entered the region and it said "Grey House" At the Grey House the back round music is so peacefull... And so misteriouse and creepy! I tip toed farther into a haunted house were undead poped out of know were flanked me and attacked me! I was spooked at first! But I killed them all evantually. I ventured up stairs and I herd wierd noises, But I also found a treasure chest. JACK POT! It pays to be brave^_^ I went back outside close to a pond and I saw a demon door hanging close by 2 near by ponds. he said "Single men, Not allowed you a ball and chain, A posh one with a title. He means in english, you have to marry a woman with a name. And the onley woman in Albion who has a name and you can marry is Lady Grey.

yeah scared the shit out of me

What? The Grey House? Yeah don't blame you. To this day I still kinda find it weird and creepy so quite, spooky and creepy it makes my house look like a big noisey circuse tent in the sunny after noon! (I live in a hauted house. Just to let you know why I said that)

you do thats pretty cool