“What if there was, or is, a race of beings which have evolved to feed on blood? As simple as that. It may appal some of us, even possibly most of us, yet we are talking alien creatures here. A race apart. Light years apart. Evolving on a planet or planets away from and not far from this Earth.… So along comes a race of beings which lives on blood from animals rather than the meat. And when they arrive as ‘gods’ or powerful beings, we in due deference feed them with what they require.”