Torture: Burning Pitch
They
stake the victim to the ground, cutting, beating, and pretty much
softening them up. Sometimes they leave them there for days in the
sun, and
sometimes they don't. Sometimes they spread pitch all over them, and
they light it. Can't imagine that kind of agony, what with it blistering
their skin
all up, burning it away, and cleaning the victim out straight to your
bones.
Pitch would do that. Wouldn't stop burning for some time, long enough
for them to be dead anyway.