Past Mistakes:

Chapter two:

After receiving the file from his father, Koenma hurried to the human realm, his heart pounding as he remembered the look on his father's face—it was a look of pure fear and…and a desolate helplessness. He never before saw his father like that, and it tore at his own security.

Reaching Genkai's, the Spirit World prince was greeted with a certain eagerness by the Spirit Detective and company—everyone was worried about the bizarre events occurring in the human realm for the past few days. Everything was toned down compared to the spirit world, but it still worried the Spirit Detective and others.

"Koenma, did you find out anything about what's going on from that old man of yours?" Yusuke asked the moment the Spirit World prince stepped through the sliding temple door.

"He gave me this file," He held up the folder for the detective to see. "And left…he looked pretty wound up from what's been happening…."

"It must be something serious then." Yusuke looked at the folder in Koenma's hand, not really wanting to read. "So what does the file say? Is it some demon or something that's causing this?"

"I haven't read it, I came as soon as my father handed me this. But I'll read it now." The brown haired prince opened the file, grimacing when a single sheet of paper came out.

"What the…? A single sheet of paper is supposed to explain what's been happening? Hell!"

Koenma ignored the Spirit Detective as he read the paper silently, growing pale with each word.

"Koenma? What's wrong? What does the paper say?"

"I…the prophecy…I can't…."

"Koenma?"

"This paper is about a prophecy made long ago, about a demon called the Slayer. It's…."

"And who is this demon? What's the big deal? Is he really dangerous?" Yusuke grabbed the paper from the prince, grimacing when the paper didn't explain anything specific about the demon. "What's the big deal? There's nothing explaining who this Slayer person is. If he's such a big deal why isn't anything written about him?"

Koenma remained silent in thought for a moment, and then started to answer the Detective when someone else spoke up.

Green eyes shimmering cold, Kurama stepped into the room in time to hear what the Detective had said about the Slayer, hiding his shock with his stoic mask.

"Because there's not much known about the Slayer. He lived millennia ago, and the humans who knew of him are all dead."

"Kurama, you know of this demon in this prophecy?" Yusuke asked expression bewildered and curious. "Why didn't you say so before? And where have you been for the past few days?"

"I've been in Demon World trying to get some information. I didn't say anything about the Slayer because I didn't know it was about him before this." The fox-demon replied, eyeing the paper in the Yusuke's hands wearily. "And I'm still hoping it isn't about him."

"Why…?"

"The Slayer…he's a demon all those in demon world feared and still fear. No one knows for sure if he's dead or alive, but they do know of the prophecy whispered by his followers." Kurama paused; face darkening as he thought of his words.

"That's not much info. He must be powerful if demon's fear him so much, but how powerful is he? I bet I can take him on no problem."

"That's bold, since no one who ever faced the Slayer lived to talk about it. That's one reason why not much is known about him." A new voice supplied, and in stepped a spiky-haired red eyed demon.

"Hiei! I thought you were in Demon World with Mukuro."

"Hn."

"As difficult as ever." Yusuke turned back to Kurama. "Well, what is known about this demon?"