Tales of the Sanguine Elixir

I have to tell you how the story begins, the story that is, of this book. One day Christine Baker posted a picture of a bottle of blood on my Facebook page. It was an incredible photo and all I could think of was:

What a great book this would be!

But then I thought some more. I thought, I wonder if other creative minds are looking at this image are thinking the same thing? What would they be thinking?
So I decided to ask in my group on Facebook, would anyone be interested in writing a story ab...