The sensation that Achilles felt was an extremely unique one.
He had experienced many things since following, well, officially, his Civilization of Assimilation.
He had felt the integration of Absolutes and treasures and Causes and memories belonging to beings whose power exceeded his own at the time of their consumption. But this was different from all of those, different in character rather than merely in degree, because what pressed against his existence now was not something external trying to destroy him but something foreign trying to become him.
Something was attempting to rewrite his very mental state.
