Nggawe versi sing luwih rumit saka ukara iki " Blood Brothers " dening Brian Lumley (1992).
Mesthi wae, versi sing luwih rumit saka ukara kasebut yaiku "Sedulur Darah" dening Brian Lumley (1992) minangka bagean pisanan saka seri Necroscope, lan nampilake serigala Wamphyri Canker Canison. "