Imagine that you are a Jew, affected by scleroderma, confined to a wheelchair, hoping that today won't be the day you die. You are taken from your home to The Keep (F Paul Wilson) which is currently occupied by Nazi militia. They are having a problem with something that goes bump in the night (and kills their soldiers) and want you to make it go away. You discover that the culprit is a vampire.
Which is worse: Nazis or a vampire?
What if you can manipulate the vampire to take out this Nazi group and then go after Hitler?
What if the vampire also has the power to heal you, make you whole again?
Which devil do you make a deal with?