I had learned at an early age that the key to evading a pursuit is to surrender to your fears. When death seems a certainty the body will respond with all manner of ingrained instincts, lending strength and speed normally beyond the reach of mere mortals.
True exhaustion is a treacherous thing; it lies to its victim, whispers promises it can’t keep, pretends danger doesn’t exist and all will be right with the world if you just lie here one more minute.