The sun had set, but the world had not plunged into complete darkness.
By the campfire, Bi Fang was shaving a tree stick, meticulously peeling away the layers of wood shavings, before pouring them into a cylindrical bark container.
After compacting the layer of shavings, Bi Fang picked out several pieces of intact charcoal from the fire, and after they cooled, he crushed and poured them in.
After multiple layers and iterations, a simple disinfectant mask was completed.
The fat from the ostrich meat was rendered into grease, and Bi Fang tightly bound a piece of hemp rope around half a stick, then soaked it in the grease until the rope had absorbed enough oil, after which he inserted it into the campfire.
The fire snake wound its way up, and in no time, the head of a torch was made, its flames brightening the surroundings.
Bi Fang extinguished the campfire with water and approached the pitch-black cavern entrance.