The Shadow Valley was relatively large, with an environment that was different than the rest of the Wysmire Mountain Range.
It didn't have the concept of night and day.
Instead, it existed in a state of perpetual darkness, with the only source of illumination being the ethereal glow of blue and purple lights in the sky.
"They resemble the Northern Lights of Earth."
These otherworldly lights reminded Val of Earth's Northern Lights, evoking a sense of nostalgia and longing.
Thinking of Earth, he had every intention to return.
He was killed in a nuclear explosion that had also destroyed everything he worked for.
But this nuclear attack wasn't a coincidence.
It was a planned attack.
Thus, he harbored a vengeful desire to return to Earth.
There were specific individuals he wanted to exact vengeance upon, individuals he wished to "skin the scalp off of" and kill with his own hands.