" At that instant, Eragon's back ruptured in an explosion of agony so intense he experienced it with all five senses: as a deafening waterfall of sound; a metallic taste that coated his tongue; an acrid eye-watering stench in his nostrils, redolent of vinegar; pulsing colors, and above all the feeling that Durza had just laid open his back. "

― Christopher Paolini , Eldest (The Inheritance Cycle, #2)