The first thing that he noticed was that Fluffy was asleep just like he had been the first time. Harry was not expecting any different. He knew that Quirrel would have gone through before he had.
So the only thing Harry needed to do was reinforce the spell on the harp. He did not want it to stop at an inopportune time as it had his first time through. So, he did just that and then moved the humungous paws off the door.
He spent a minute just staring into the abyss below that should contain devils snare. He took a deep breath to prepare himself, and got his plan ready in his mind. Then he jumped.
As soon as he landed he knew it was the same as last time. The ground beneath him was squishy and started to move. He rolled out of it before it could get a good grip on him. For a minute or so the devil's snare kept reaching for him as if it wanted to drag him back, but it soon gave up for Harry was already long gone.
The next room he entered was the room with the keys. Now this room was more difficult. Last time he had gone after the keys who then chased him around the room. Then as soon as he had caught the correct one he had given the key to Hermione who had unlocked the door as they continued to chase him.
The problem was that this time he was alone. One of the downsides that he had almost forgotten about when he had decided to go alone. So, this room could end up being the most difficult for him to get through.
No matter. He had to try. So try he did.
He got onto the broom and the keys started coming from all directions as if they wanted to skewer him like a shishkabob. Harry took off quickly to try to avoid them. He flew quickly around the room. It was hard to see the one he remembered that he needed when there were keys that kept getting in his face
Around and around he flew until.. There. He spotted it and took off towards it. For having a bent wing it was incredibly quick and he missed several time until finally he was able to grab it.
He flew towards the ground and jumped off several feet above the ground and ran towards the door. Harry then ran towards the aforementioned door as quickly as possible. Then he brutally shoved the key into the lock and twisted and pushed.
Harry got the door open just far enough to slip through and shut the door with a single key making it through after him. This key then proceeded to continue trying to put a hole in him or five until Harry tried a simple finite incantatem and it fell to the ground. Its charm undone by Harry who would have tried that in the first place if he didn't mind Dumbledore knowing he had been there.
As it was he didn't so he banished the key and proceeded to turn around to face Ron Weasleys greatest dream, and indeed it had been apart of his dreams after this day in the old timeline. It was a life size chess board.
Now Harry was no chess player. He hadn't been much of one at this point in the old timeline and had never really gotten too much better, it was just something that didn't interest him much. Not to mention that after Ron had died it had always been a reminder of the friend that he had lost.
However, he did have something that he didn't have the first time around, a little bit more common sense. What use was there in playing across the board and risking one's life when one could just levitate oneself across?
It had never been proven about whether or not one could use the levitation charm on oneself and Harry did not particularly feel like testing it at this precise moment in time, but he didn't have to.
He took a quill out of his pocket and transfigured it into a chair, and then sat down on the chair. Harry then carefully levitated the chair, with himself still sitting on it over to the opposite side of the board, and before anything could have he finited the chair and rushed through the door and almost backed upwards again.
This was the room that had held the troll that was no longer conscious. Now this held a problem for Harry. Oh he was glad that he didn't have to fight the troll, but it did pose a problem to his plan. He didn't want Dumbledore to know that anyone preferably had been there and he would certainly know that someone had been there if there was an unconscious troll in the chamber.
However, there wasn't anything that Harry could really do about it. When Dumbledore realized that the stone was missing, he was going to figure that someone had been there anyway. It mean Harry could have tried to make a fake copy of the stone, but he didn't know how. He might have the knowledge and memories of his older self, but that didn't mean that he knew everything. So, he might as well leave the troll and just make sure to mask any signs that his own presence had made.
So, he carefully stepped around the troll while holding his nose the entire way till he came to the opposite side of the room that had the door ensconced in it. Harry then opened it and proceeded through it.
Just as he passed the threshold, flames shot up behind him and on the other side of the room just as he remembered them doing the first time. He then noticed the table filled with bottle of all shapes colors and size along with a familiar piece of parchment that read:
Danger lied before you, while safety lies behind,
Two of us will help you, whichever you would find,
One among us seven will let you move ahead,
Another will transport the drinker back instead,
Two among our number hold only nettle wine,
Three of us are killer, waiting hidden in line.
Choose, unless you wish to stay here forevermore,
To help you in your choice, we give you these clues four:
First, however slyly the poison tries to hide
You will always find some on nettle wine's left side;
Second, different are those who stand at either end,
But if you would move onward, neither is your friend;
Third, as you see clearly, all are different size,
Neither dwarf nor giant holds death in their insides;
Fourth, the second left and the second on the right
Are twins once you taste them, though different at first sight.
As Harry read this, he couldn't help but think that even though Snape was a git he was also a genius when it came to logic puzzles. This would fool most wizards. Though he still couldn't understand why he would leave a guide to get through this room in the first place. Voldemort was a genius in his own right. He probably figured out this room in a trice.
Now Harry was no genius but even he could now figure out logic puzzles even if when he couldn't when he was originally eleven. So, he spent a few minutes thinking. It took longer than it had Hermione but get it he did. The smallest bottle would take him forward whilst the one all the way to the right would take him back when it came time to go back through. He quickly downed the needed potion, took a deep breath with his wand out stepped though the flames.
Just as he remembered Quirrel was standing in front of the mirror. Harry gave him no time to react to his appearance. He sent a flame throwing curse at him. Quirrel tried to move but Harry curse was made to take out multiple enemies at once and both Quirrel and Voldemort had been taken by surprise.
Quirrel quickly went up in flames. Harry was surprised by his success and let his guard down for just a moment which gave the burning man the opportunity to through a killing curse in Harry's direction which missed him only because Harry saw it at the last moment and stumbled backwards, in the process tripping over the stairs. Harry rolled all the way to the bottom and looked up just in time to see Quirrel's ashes fall to the floor and the spirit of Voldemort rising through the ceiling.
Quickly before Dumbledore showed up, or at least as quickly as he could with bruises blooming over what felt like all of his body, Harry made his way towards the mirror. There he paused.
He was in a pickle. He didn't particularly want Dumbledore to know that anyone had been there but at the same time he wanted Flamel to be in possession of his stone. He wanted the Flamels to have a chance to decide whether to destroy it or not without Dumbledore's being in possession of the stone influencing their decision.
The question was whether they would make the same decision that they had last time even though they were in control of the stone this time. The answer was probably, but he couldn't be sure. Also, there was the fact that if Dumbledore was concentrating on who might have gotten the stone under his nose then he might pay less attention to what Harry was doing and where he was come the end of the year.
That decided it for him. Lucky for him, all his thoughts only took a few seconds and so a minute later he was disillusioning himself with the stone in his pocket and walking into the previous room. Just in time too because that was the moment that Dumbledore chose to come into the room and walk right past him.
Thankfully Dumbledore had deactivated all of the previous rooms so Harry only needed to transfigure another chair, disillusion it and levitate it and himself out of the hole. He quickly and silently made his way to the common room and to his dormitory. He then went into the bathroom to clean himself up.
He had several cuts on his face and hands which he healed with a quick healing charm, but the bruises would be more problematic. He figured that he would just have to cover them up and deal with them. It is not like he could go to the hospital wing. Madam Pomfrey would want an explanation. He couldn't tell her the truth, obviously, and even if he made up a convincing lie, Dumbledore would still be suspicious.
So, he just cleaned the blood up and changed into pajamas and climbed into bed, just in time to. For a prefect chose that moment to come in and inform everyone that they were wanted in the common room.
One of Harry's roommates, Harry couldn't tell which asked why.
The prefect's answer was rather rude and filled with irritation, “How the heck am I supposed to know. They haven't even told us yet. Just go to the common room now.”
They didn't need to be told twice. They all got up out of bed with lots of grumbling and headed to the common room.
The first thing Harry noticed was that everybody, all the Hufflepuffs anyway were coming into the common room. The second thing he noticed was the Professor Sprout was at the front, and she looked like she had just been rousted out of bed like the rest of them were.
As soon as the prefects joined everyone else, Professor Sprout began talking.
“Now I really am sorry for having everyone get out of bed at this late hour, and I wouldn't have done so except the headmaster requested it of all four of us heads to do a head count of every student in our house to make sure that everyone was here.”
“But why professor?” Some older year asked
“Now all I can tell you is that the headmaster deemed it very important to make sure that everyone in the school was OK and in their common rooms. Now lets take role.”
And take role she did for the next half an hour. There was much complaining on everyone's part and by the end of it Professor Sprout didn't look too happy herself which was quite unusual for her. However at the end of the half hour, everyone was accounted for and she left to tell the headmaster so.
Despite everyone only getting a few hours sleep, they were now clearly wound up. So, pretty much everyone stayed in the common room to gossip about why they thought the headmaster would ask the professor to do such a thing. Harry stayed down as well, to avoid suspicion as to why he wouldn't want to talk about it. However, he was exhausted and soon drifted off to sleep.