No More Learning

Wrapped in the mantle of the
unknown, appalling by their craft, their ferocity, their fiendish
cruelty, they seemed to the white settlers devils and not men;
no one could say with certainty whence they came, nor of what
tribe they were; and when they had finished their dreadful work,
they retired into a           that closed over their trail, as the
waves of the ocean close in the wake of a ship.