Nico was used to these kinds of things, but since the Titan War things had calmed down a lot.

Percy fell of Mrs. O'Leary as soon as they got to Camp Half-Blood. "I've always hated shadow travel" he said.

"So why am I here?" said Nico.

"Well, it's not common knowledge but there's not just the Greek Gods out there. There are other gods, too, but we don't get along with them. Also, there are wizards and witches. About 40 years ago in England a dark wizard was gaining power. He was defeated by a boy named Harry Potter, who was just a baby at the time, in 1981. 16 years later he came back to power and was again defeated by Harry Potter. For the past twelve years he's been hiding under benches at DOA recording studios waiting for his followers to come and sneak him out.

"But, he doesn't know is, as there are different gods and wizards, ect. out there, there are also different Underworlds, Hells, Heavens, ect. Well, if someone is so bad the personally catch Hades attention (which is unlikely since we all try to ignore the wizards) they come here since we," Annabeth smirked a little, "do have the best torturing methods around."

"Wait," said Percy, puzzled, " How could he die twice?"

"That would take a lot to explain, Chiron hasn't even told me yet."

"In short, a dirty wizard trick," said Nico "He cheated death. Not many wizards chose that path, not many even know that path exists. Some chose to be ghosts, but more chose death. But what he did, I mean I'm the child of Hades and even I don't like murder. It's even worse then a soul for a soul." He seemed to be mostly talking to himself now, and that's how you could tell Thailia had her headphones in because she was still nodding like she was agreeing with something. Percy ripped them out of her ears.

"Hey, I've already heard the story" she said

"Ya, well she told it a heck of a lot better this time, now I can somehow understand some things a tiny bit."

"So anyways," Annabeth cut in, "Hades needed us, and he even invited some wizards to come help"

"You still haven't explained why he needs our help."

"I'll explain that more when the wizards come." With that they walked to the dining hall, which was where Chiron had told us to meet him.

"The wizards should be here soon." He said. And with that the fireplace turned bright green.