Lessons in the Dark

"Did you figure it out?" Midnight asked as she saw that he was muttering something to himself.

"Yeah… I just realized the voice… It wanted me to kill… does that mean that by just killing I will get stronger?" Zaroth asked as he shifted his gaze to her.

"… It is possible, but honestly, it sounds too easy. If killing someone was enough for you to get stronger, then if you just go on a killing spree, you would become invincible. Not to mention, while a vampire can't drink endlessly as its body wouldn't be able to hold all the blood, you can kill as much as you want with no downside."

"That does sound too good to be true…" He had to agree. If just killing made him stronger, then what would stop him from going to the center of the capital, summoning Luna, burning the capital to the ground, and becoming unstoppable? 

Also did he personally have to do the killing, or would his beasts and their kills count as well?