Here's the rewrite for Chapter 16.

In the days that followed, everyone could talk of nothing else but the attack on Mrs. Norris. It became evident when the pranks lessened. The authors and authoresses, down in their own chamber, whispered and murmured to each other, hoping that one of them might be allowed to journey with Harry, Ron, Hermione and maybe Frodo and Sam, for they had a sneaky suspicion that Frodo would take Sam this year to the Chamber of Secrets.

But not every authoress was happy to hear the news. Aria was distraught at Mrs. Norris being petrified. Eventually, she did snap out of her depression, but that did not stop her frantic hope that Filch's cat would be unpetrified by the end of term.

One morning, during Sindri's class, Aria dared ask the dwarf teacher, "Professor Sindri, what can you tell us about the Chamber of Secrets?"

The whole classroom fell silent.

"Miss Breuer, why do you ask such a question? Do you think I would know the answer?" Sindri spoke up, tensely.

Frodo raised his hand. That got Sindri's attention.

"Yes Mr. Baggins," the dwarf instructor asked.

"Aria has a point, sir. What do you know about the Chamber of Secrets?" Frodo asked, politely.

"Oh, all right." Sindri told the tale, "When Hogwarts began, there were four founders: Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw and Salazar Slytherin. Three of the founders sought peace and a school for everyone. Salazar Slytherin went against the four, as he only wanted to allow pure-bloods into the school. When the other three went against him, Slytherin decided to leave the school. Before he left, he built a hidden chamber in the castle, guarded by a monster, and named it the Chamber of Secrets."

He added, "Every witch or wizard knows this story. But the chamber itself has been lost for centuries. No one knows where it is or where it's kept." He returned to the subject at hand. "Now, onto today's lesson: how to create a useful story with magic as our aide…"

When the lesson ended and Frodo collected his books, he regrouped with Aria, Sam, Merry and Pippin. Fatty Bolger and Folco Boffin darted down the corridor before they had the chance to speak to their friends. However, Frodo's mind was fixed on the story Sindri wove. He wasn't' the only one thinking this restless thought.

"Is it true? That another chamber exists in the castle," Frodo asked his friends.

"Aria would know." Merry said, pointing to Frodo's authoress.

"Yeah. She has Harry's books, doesn't she?" Pippin said, giddily.

"How would you know that?" Aria asked, her gaze on the floor in front of them.

"We think it's obvious. I mean, you are an authoress," Merry said.

"Good point." Aria ended her part in the conversation. "I've got to go. Lots to studying to do. I'll see you later." She ran off down the corridor. Frodo was stunned.

"Where is she running off to?" Frodo did find it odd. Usually Aria spoke to him more. Maybe she was too distraught, due to the attack on Filch's cat.

"Maybe it would be better if we asked Harry, Ron and Hermione…" Sam was cut off, the moment Merry clamped a hand on his shoulder.

"That sounds like a good idea," Merry agreed.

"Let's ask them," Pippin said.

-.-.-

The four hobbits found Harry, Ron and Hermione on the second floor, where the mysterious messages were scrawled on the wall. What did it mean? And where did the water come from? Hermione and Ron concluded that it came from the girl's bathroom, just down the next corridor. In spite of Ron's protest, Hermione answered the bathroom belonged to Moaning Myrtle, the ghost who haunted the bathroom.

"Go on," Harry said, waiting on the four hobbits to follow them. Frodo still couldn't believe they were entering a girl's bathroom.

"Well, it could be worse," Frodo said, distraught for a moment.

"Don't say that," Ron insisted.

"Why is everyone disturbing my peace and quiet?" Moaning Myrtle asked, annoyed.

"At least we found a place hardly anyone will…" Frodo was cut off by Hermione, who told them:

"Come on. Let's go." Hermione said.

Frodo stared at the ghostly girl one last time. He and Ron nearly crashed into each other, upon leaving the girl's bathroom. Just as they closed the door, the group were stopped by Percy Weasley, who was in a sour mood. After Ron and Percy's argument, it was clear they needed to move away from the area, before they got into deeper trouble. However, Gryffindor lost five points, due to what Percy called their detective work.

Frodo said nothing to Percy. He didn't want to risk Ravenclaw losing house points. He wasn't alone, for Sam was trembling. Sam told Frodo later that his brothers and sisters would have his neck if they lost points for Hufflepuff.

-.-.-

Early the next morning, Frodo met with Sam, Merry, Pippin, Harry, Ron and Hermione down the sixth floor corridor. Frodo muffled the sound by use of his hand magic, which he was beginning to regain control. The spell worked and proved a bit more powerful than he expected. At least they could talk as loudly as they liked.

"Thank you, Frodo," Ron said, cheerful.

"Oh brilliant!" Hermione said, delighted.

"So what were you trying to say?" Frodo asked.

"We talked about it, and…" Hermione was interrupted by Harry, who spoke out of turn.

"We're going to use Polyjuice potion to sneak into the Slytherin common room."

"Excellent!" Merry said.

"How do you use Polyjuice potion?" Sam asked.

"It'll transform us for an hour into another person," Hermione explained.

"Oh brilliant," Merry and Pippin said at the same time.

"I think the authors and authoresses beat us to it, though," Hermione admitted, "but don't worry. They'll keep an eye on us when we're in the Slytherin common room."

"So Aria will be involved," Frodo asked.

"Most likely, but she's still distraught over what happened to Mrs. Norris. She's almost as bad as Ginny." Ron added. "Cat lovers."

"Oh Ron, what if I get a cat?" Hermione snapped.

"That'll be a nightmare!" Ron said, "Poor Scabbers."

"Frodo, how long does this muffling spell last?" Harry asked, right as the invisible bubble popped. Frodo stared at the ceiling to the corridors. The sound was returning.

Frodo confessed, guiltily, "That long." He apologized to his friends, "Sorry. My hand magic's a bit out of sorts recently."

"You should see my wand. It's still broken, until I get a new wand," Ron told him, pulling out his taped up wand.

"I digress," Frodo said, conceding.

"Can we go to the Great Hall now?" Ron asked the group.

"Right. Let's go," Harry said.

Frodo stayed behind for a few moments. His mind was restless, and yet his invisibility barrier and sound barrier were stronger this time around. Maybe he was getting the hang of it, but then anything could happen at Hogwarts.

"Mr. Frodo, you comin'?" Sam asked. Frodo thoughts returned to the present.

"Yes Sam, I'm coming." Frodo dashed towards his friend. The two followed their other friends back to the Grand Staircase. At least he got something right: his hand magic was stronger than last year. He hadn't been in that much control before. Still, he wondered if his hand magic was under his control. And his fingers sparked again.

Hm… maybe he needed more confidence in himself.

Another chapter rewritten and complete, but this is not the end of the story. Thanks for reading this story so far. :)