When the target of this spell spoke falsely, part of their body would burst into flame.
For this spell, the idea of truth is based on the caster's ideal, not the target's. If something is incorrect yet the caster believed it to be the truth, then the target would suffer accordingly if they "lied."
This spell expired after ten questions were asked.
This spell required a candle made from a rare form of desert bees wax to cast.