The dark of night

The two, Eldrian and the dark-robed NPC, traveled in complete silence. This silence was not normal either, but rather unnatural. It muffled all sounds, the hooves of the horses hitting the ground, the wind passing past Eldrian's ears. Even his and the horses breathing, all seemed to not exist. 

When Eldrian realized this he felt goosebumps spread over him as he wondered what was going on. The silence racked his nerves making him want to break it by talking. Each time he considered it and opened his mouth he would get a death stare from the NPC. 

Eldrian felt certain the stare said something like, "You talk and I will leave you." This caused him to swallow back his words and wonder just why they had to be silent. His imagination ran wild.