Can anyone identify this font? The title page in the ebook is an image, and there's no credit listed, and my web searches have all been dead ends.

I'm not certain there aren't three similar fonts; there are at least two distinct fonts here, and maybe three, although they could all be in the same family -- Bold, Normal, and Light. I'm most interested in the middle font, but all three are interesting.

It's a striking title page, and I'd really like to ID these. My fall back will be to write the publisher and ask, but I'm hoping someone here will be able to toss the family off the top of their head.