Title: Petunia's Second Year

Rating: K

Summary: Petunia Evans returns to start her second year at Hogwarts. James and his friends and Lily and Severus are in this story as well. Sequel to Petunia, the Demigod Witch! A crossover of Harry Potter and Percy Jackson!

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

Chapter 5: Hellhounds

By the end of the first week it was clear that Lily, despite being smart, was having trouble with her classes. So Petunia invited her to come and be tutored in Magical Theory and Transfiguration. They took place on Saturday and she had returning students as well as first years. Those returning were glad that she was back.

"Have I ever let anyone down?" she asked them.

The second week came around and the Slytherin's were back to not wanting to say anything that might bring out that whip. The Perfect that had gotten burned decided against returning to Hogwarts and so Narcissa got the badge. Petunia was also showing Lily how to write with a quill, which isn't as easy as they make it look like in the movies. Monday also marked her back brewing a total of twenty cauldrons full of Wolfbane and getting them ready to be sent out.

"Do you get tired of brewing them?" Narcissa asked her.

"No, I really like it," Petunia said.

She saw Narcissa rolling her eyes.

Reports about more deaths stopped during that week. Either Tom was laying low until he got more supporters or something had happened. On Thursday Petunia watched the Flying lessons between Gryffindor and Slytherin. Her friends did pretty well on brooms but she could tell that Lily wasn't a natural on one.

"Worried about your sister," Dumbledore asked and Petunia turned around to see him standing there.

"Shouldn't I be?" Petunia asked him.

He chuckled and said, "I'm not saying that you shouldn't."

"Tom was in the Defense classroom," Petunia told him. "He had a box with him but one of the hellhounds got rid of it."

"What was it?"

"A Horcrux," Petunia answered.

"Dear gods," Dumbledore said, "He's making them so that he can come back if he's defeated."

"I figured that much," Petunia said. "I've also noticed that the deaths have not been reported. He might still be weak from what happened."

"If you were able, and that's an if, to weaken him then we have an advantage over him and anyone that joins him," Dumbledore said, "A Slytherin that doesn't believe in blood purity, and wants no power over others, is a dangerous enemy for him. He uses people's weakness and their desire for things to get him to join."

"Then you can count me in," Petunia said. "My father fought in the last World War. Evil has many faces, Headmaster, and this is just another one."

"That I'll agree with," Dumbledore said and Petunia vanished in a swirl of purple smoke.

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"So what's the deal with this Slytherin?" Alister asked the Headmaster.

"She's different from the likes of Lucius Malfoy and his father, whom I believe is still serving Tom."

"You know that it's only a matter of time before she turns dark," he said. "Not a single Slytherin can resist power."

"Depends on the power," he said, "Petunia Evans has seen the best of the muggle world and I've been hearing that she's made claim that she'll protect them."

"And how can a single child defend anyone?"

Dumbledore grinned and said, "You are surprised what a single person can do. Anyway, she might be the only thing that really gives Riddle true fear. She fought against him a couple of months ago."

"WHAT!" he shouted. "Are you telling me that even as a first year she was able to match wits with this mad man?"

"That's exactly what I'm saying," he said. "She's proven that he's weak against someone that is naturally born with more magical strength. I'm going to keep a close watch on her and her friends. By time her sister, and the others, enter their final year she will be gone. Though as a student! I have an idea on how she can reign in the final year Slytherin's even after she's graduated."

"I hope you know what you're doing," Alister said.

Dumbledore grinned again.

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Petunia discovered that her second Saturday had gone to the dogs. Seven hellhounds had appeared and they were looking for a meal. Why couldn't she have a single Saturday without some kind of worry? She vanished and then appeared, right on Professor Flitwick.

"What the-?"

The door shook and Petunia said, "Sorry."

The door shook again and Dumbledore, who was there, pulled his sword out.

"Albus, what-?"

"Not now, Minerva," Dumbledore said.

"Seven of them," Petunia reported, "And their hungry."

"And I thought that the barrier would keep them out," he said.

Petunia narrowed her eyes and then the door broke down and the hellhounds launched at them. Petunia and Dumbledore both shot fire at them, getting three at once. Petunia then brought out the fire whip and caused an arch to go around the room.

"DUCK!" Dumbledore ordered as it got all, but one.

Dumbledore pulled out his wand and shot a spell that incased the last hellhound in ice and made the thing explode.

"Thanks," Petunia said.

"What the bloody hell was that?" Sprout asked.

"I'll let you explain," Petunia said and she left.

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A/N: Things are starting to get nasty.