On the third day of the polar night.
Under the dim white light, Bi Fang yawned, crawled out of the Musk Ox Skin sleeping bag, and pushed aside a moveable rock in the remaining fire pit. He picked and chose, found a smoking log, broke it, and after revealing the sparks, he lit the oil lamp.
Ancient people often used animal fat as fuel for lighting, and since oil lamps could employ any non-flammable container, Bi Fang quickly fashioned one out of a lump of clay.
The lamp wick, twisted from pine tree bark, smoked and sputtered vigorously when it met the spark, then lit up.
A small flame flickered to life, illuminating the dim cabin and Bi Fang's sleepy eyes.
The sudden appearance of light made Goudan from the Three Fools twitch his ears, open his eyes, and after seeing Bi Fang, he closed them again, turned over, and continued to sleep next to the fire pit.