Title: The Son of Zeus and the Triwizard Tournament

Rating: T

Summary: Harry Potter, son of Zeus and Hera, heads back for his fourth year at Hogwarts. Betrayed by people that he thought was his friends, but gaining new friends, he finds himself in the Triwizard Tournament. It will take everything that he has, and his new friends, to win and to make Tom Riddle fear him. Sequel to Harry in a Whole New World and a crossover with Percy Jackson, with Weasley and Granger bashing!

Disclaimer: I don't own any of Rowling or Riordan's characters and I'm making nothing from this.

Chapter 15: The Grey Sisters

Harry's POV

I knew that McGonagall was going to give me so much detention that I would die in the classroom, which is why I didn't go back to the school when the ball was said and done. I was more focused on whatever the egg was going to tell me about the next task. And we still had the Diadem to take care of.

"Do you think that Peter is going to try something," I asked Sirius.

"If he's smart, which I know he's not, he will listen to his master and not do anything," Sirius said, "Though wanting to please him will most likely make him do something stupid."

"We can only hope," I said to him.

"I wonder how mad Minerva is going to be when Harry goes back." Remus asked, wondering.

"I think very mad," Sirius said, "I mean, he brushed off the Yule ball and that's the most important event in the whole thing."

"I don't care for dancing," I stated.

"Well make it up to Luna," Remus suggested.

"I will," I promised.

We spent time in Sirius house getting rid of things that we didn't trust. It was hard work but being with the Dursley's had helped me get used to doing this kind of work. Sirius and Remus would be heading back once Tom was finally down in the Underworld where he belonged.

"Term is coming up," Remus told me, a reminder that getting rid of the Diadem was needed.

"Don't worry; I'll be back before term."

That night I was woken up by the worst thing that you can be woken up to, the Grey sisters. They all had no eyes and no teeth. Except for one, which they passed around!

"What do you want?" I asked them.

"Well," said the middle.

"Is-."

"That how you treat us," they all asked at the same time.

"Well you woke me up," I pointed out.

"Hades is wondering when your-."

"Going to get the Diadem out-," said the first.

"Of the way," they all said at the same time.

"I'm heading back to Hogwarts tomorrow," I told them.

"You could have done this quest faster," they all said.

"And have Tom know that I'm getting rid of them," I said, "I don't think so. I wasn't born stupid."

"Look, honey," said the third.

"We don't make the rules."

"I know that," I said, "I'll get rid of it tomorrow."

And I went back to sleep, hoping that they would be gone in the morning.

Thankfully they were but Sirius moaned about them hovering over his bed. Remus laughed at the look that his face was giving.

"It's like a bad horror movie," Sirius told me. "Those three women, with no eyes, is not something you want to wake up to."

"I'm surprised that anything woke you up at all."

He glared at Remus.

"I told them that I would be heading back to Hogwarts," I told them, "Sirius, are you sure that you want to come with us?"

"Have to," he said, "But since no one knows that I turn into a dog then I'm fine."

I nodded and started on my breakfast once I had given an offering to my parents.

Sirius changed into his dog form and I sent a quick message to Severus, telling him that we were heading back to the school. He had me repeat a charm and when I did we both vanished. When we appeared we were inside Severus office.

"I need to change you both into books," he said at once and I felt my body shift, along with Sirius, and then he placed us on his desk.

A couple of moments later Professor McGonagall walked in.

"Someone went through the wards," she told him.

"And who could do that?" he asked her.

I couldn't tell what she was doing but I could actually 'feel' her wand scanning the room. Finally, "If Potter thinks that he can hide from me, he's mistaken."

And she closed the door.

"What the heck happened?" Sirius asked once we were back to normal.

"Minerva is angry that Harry didn't show up for the ball," he said, "She thinks that he's doing something to keep from fulfilling her expectations."

"Great," Sirius muttered. "Thank the gods that Minerva doesn't know that I can change into a dog."

"We need to get rid of the Diadem," I told them. "Remus returned to camp as it's close to the Full Moon. The thing is inside the school."

"He must have hid it when he came to ask for that job."

"The Defense position," I said and he nodded and I pulled out the amulet. It floated at once and we followed it.

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Hermione's POV

"Potter is always making the Wizarding world look bad," Ron said, "I mean; he didn't even come to the ball."

"Don't worry, we'll find a way to make him pay," I told him, "After all, he's making life for Professor McGonagall hard. I mean, he moved out of the boy's dorm and got Hufflepuffs quarters."

"Don't remind me," he snarled. "I'm going to have to have a talk with mum. She knows what to do."

I smiled, knowing that Mrs. Weasley would have an idea on what to do next.

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A/N: The next chapter will be the end of Ravenclaw's Diadem and the end of Voldemort.