There was one substance I’d learned could be lethal to the Descended: godstone, a rare material that could only be made by the Kindred. If formed into a projectile or blade, a serious strike could be instantly fatal, and even minor blows risked an infection from its lethal toxin. Though harmless to mortals, its effects were ferociously destructive to Descended, a gruesome and painful death with no known antidote.
