Harry Potter will never belong to me, no matter how many digits the chapter number gets.

Harry tore down to Hagrid's hut after the DADA lesson, and almost broke the door down with frantic knocking. The giant man swung it open and invited him in.

"Wha's wrong wi' yeh, Harry? Need help wi-"

"Hagrid, I need to borrow the Guide for the night, Lupin figured out that Voldemort was a boggart and thinks he kidnapped me! He's going to use Riddikulus on me tomorrow!"

"Whoa, Harry! Slow down!" Harry breathed long and deep. "Now, start a' the beginnin'. Lupin found out abou' the boggart? How?"

"I think he remembered the lesson before, when we had to fend off a boggart, so he used Riddikulus and I transformed, obviously," Harry told him, shaking his head. "Guess I shouldn't have come up with such a big prank... I just wanted to test my transformation while still doing my lessons..."

Hagrid nodded, stood up, and pulled the tattered red book from a nearby shelf. "I wan' it back by tomorrow evenin'," he told Harry, then chuckled. "I need ter catch up on me magic, after all!"

Harry smiled gratefully, then waved Hagrid goodbye and sprinted to the gryffindor common room, passing Gred and Forge, with whatever they were selling, and up the stairs to the dorms. Pulling out the chewed quill once again, he yanked the book open and wrote.

The next day, Harry and co. were greeted in the corridors by a less-than-welcome face, who pulled them into an empty classroom. He had barely turned to the man when he heard the dreaded spell. "Riddikulus!"

Nothing happened. Lupin frowned a little, before shouting, "Finite Incantatem!"

Nothing. "Well, all seems to be in order, Mr Potter. Twenty points from gryffindor for failure to show up for classes yesterday."

Only twenty points? Harry had gotten lucky. The Riddikulus may have hurt a lot, but at least Lupin no longer suspected him.

The Professor had ushered the trio out of the classroom, and they were just about to turn the corner and out of the man's sight.

"Riddikulus." Harry's trick hadn't been enough. He had Shifted into Voldemort and put up a glamour charm. Lupin had cast the first spell, but Harry had barely flinched; Lupin had been trying to change Harry's form, not Voldemort's, and the magic hadn't worked. Still under the glamour, he Shifted back into Harry just in time for the charm to be dispelled.

That was where it had gone wrong. Lupin had obviously seen some proof that Harry wasn't himself; maybe he had blurred ever so slightly as the charm was forced off, he thought. Anyway, the second Riddikulus had hit him square in the back, and he had been stunned shortly after.

The boggart-who-lived woke up in a dark area, and stood up. He felt around him for anything of note and immediately his hands found walls on either side. He kicked forwards and back and came into contact with more walls. He realised that Lupin must have locked him in the wardrobe. He found himself respecting the teacher; he had been furious when he apparently found Harry gone, and obviously cared about his students as much as Dumbledore.

That wasn't important right now, however, as Harry was growing increasingly restless, just like he had in the hospital wing. He would go insane at this rate! The boy kicked forwards as hard as he could, and achieved nothing more than a broken foot, as Lupin had removed all weapons, including shoes.

There was nothing for it. He would have to try Shifting into the Acromantula form, without Ron as a catalyst. He concentrated on the image he'd seen while with Ron, and opened his eyes. He could see in the dark now, and looked at his person. He had been completely stripped except for light grey boxers, but he certainly hadn't been stripped of power. Lupin had obviously never seen a boggart Shift without a fear catalyst. That was lucky, to say the least.

Harry was covered head to toe in a glistening black. Four extra limbs curled forward from behind him, and closer inspection revealed each to be separated into three segments. Unfortunately the tips weren't exactly sharp, but really, what had he been expecting, needles? Harry's feet had no toes, but instead were covered in bendy exoskeleton, almost like close-fitting socks. His hands were similar, looking very much like black mittens.

The walls surrounding him had a wooden texture, and the one wall with a tall, thin slit on proved his suspicions. He braced himself and launched a spider leg at the door, then winced in pain. It had only rattled slightly; Lupin must have reinforced the wardrobe, and Harry couldn't get much leverage in this small space. He leaned on the door, giving his legs the greatest space away from the door possible, and put all his might into a single swing from two legs.

The door burst open, the reinforcement enchantment shattering from the sheer force, and Harry stumbled out, exhausted. He only just noticed how light-headed he had been; apparently the reinforcement spell didn't allow air through, and he had been dying of oxygen deprivation. Good to know.

Still with a headache, Harry did the first thing his mind suggested and looked into a mirror, which was conveniently stood up next to a few papers. He stared at the reflection for several minutes, poking himself in the eyes to insure they were his. His eight eyes. A pair above his regular ones, another on his temples, and a third under those on his cheeks. They were all a brilliant green, the colour filling the entire eye and seemingly glowing.

He looked for other changes. His hands and feet were as he had seen them before, as was the rest of his body. His hair, however, had somehow become a similar silver to that of the Patronus, contrasting against the night black of the rest of his body, and was now at shoulder length, though still as messy as ever, if not more so.

After a few more minutes (or maybe hours) of checking for any other changes, Harry tore his eyes from the mirror and began searching for some robes. He couldn't go anywhere in just underwear, after all. He had to look somewhat presentable. After a minute, he slapped his forehead. He could create his own clothes! He Shifted his robes on, walked towards the door, and stopped.

Shift walked calmly back to the mirror. There he was, in his full unclothed glory. He Shifted his robes on.

He Shifted his robes on.

Harry is stuck in Acromantula form! What will it take him to become human again? Find out next time!

This has gone decidedly off-canon now, and I don't regret it. Sure, the general canon events will unfold, such as Sirius showing Peter to the trio, but I plan to make the school year VERY different. Or not. I don't exactly plan much.