Fear.
An emotion that arises powerfully and primitively from human instinct when faced with "danger."
It may initially stem from direct sensory input, then, through imagination and memory, extend to a subjective mental perspective.
What did Terry William see or, more precisely, feel?
It was a cold and ancient sense of oppression, laced with pure malice.
Every strand of air around him felt like a tangible lead weight, pressing down on every inch of his skin.
This was neither the thunder from the edge of the heavens nor the bone-chilling coldness of the rain itself.
It was accompanied by the rise and fall of a wolf's howl and the waving of manes, a darker, more profound fear.
"Catastrophe," concerning survival, regarding the fight to live, the alarm in his heart had already been raised to the highest level.
The golden semi-long hair, drenched by the rain, stuck disheveled to his cheek, and his pale, bloodless lips parted slightly, vaguely exuding a life-like scorching mist;