Darkness

Alex jumped down into the ravine, the sword aura moving around him. He could feel the intent behind the attack that had left the sword aura. It was a mixture of killing intent with cutting intent. 

The swordsman that was responsible for this had cut down the entire mountain range to form a ravine with just his Sword, so it was overflowing with sword aura. 

Even generations later, the ravine still lingered with the same aura, albeit far weaker than what was probably used all those years ago.

"Can you sense the death aura?" Scarlet asked.

Alex slowly landed down in the ravine where the sunlight only reached the ground because it was noon. The cliff-like walls protruding from the mountains cut up mountains around him and wouldn't allow for sunlight to reach here at any other time.