human
Produce a detailed written description of an eerie canyon in the wilderness with a chasm, fissure, and tendrils of darkness.
assistant
Imposing rock walls rise into the night sky, their suffocating closeness heightening the effects of nightfall. Spreading tendrils of darkness creep across the bottom of the chasm devouring the last remnants of day. A forbidding dark fissure, almost lost in the inky blackness, mars the rock face and plunges deep into the cold heart of the mountain.