How were we supposed to find devils among humans?
"Toss them into the water. Those who don't drown are devils, and those who drown are humans."
How were we supposed to resist the devils' evil temptation magic spells?
"…Loudly shout the name of the God of Holy Light. Wicked beings will be unable to harm devout believers. Our God won't give protection to believers who aren't devout enough…"
That sounded quite nice. Those who died weren't devout enough? It wasn't like the dead could talk.
How were we supposed to kill devils?
"…Burn them to death in holy fire. Those who die are devils, and those who don't die… well, the holy fire should be able to burn anything to death. This book didn't even write anything about what to do if the devil can't be burned to death, nor did it say anything about how to toss a devil into holy fire."
