Witches Ball Costume

So i am looking for the most impossible dress to find - i need a slip dress with a VERY low open back and asortof maderine style high colar on it yes also it needs to be red blood red.

Yes this drees is impossible to find - but should you find something close i would love who ever it is for ever
( costume stuff - partner wanted )

So At any rate purrrr - read the book(s) and stuff
yeah off to go design my marque