206 Do you know about the four blood types?

Lin Fan followed behind the man into the huge cave. The deeper Lin Fan went, the stronger the smell of blood was. Tick-tock. He could hear water trickling inside the cave. 

There was a huge pit inside the cave. Stone stairs could be seen on the walls of the pit, spiralling to the bottom of the pit. The pit was so deep that one could only see darkness when they looked down from the top. But if they were to look up from the bottom of the pit, they would be able to see numerous metal chains hanging down from the top. Corpses belonging to humans, beasts, and various monsters that looked like both were tied on the metal chains.

Pui! 

Torches along the walls of the pit lit up all of a sudden. It led to the bottom of the pit, lighting up the stairs and the surroundings. 

The man walked carefully, not daring to make any noise. "Be quiet. Do not make any noise." He said softly to Lin Fan.