Harry's POV
To tell the truth, Harry was terrified about going to the chamber, and with every step he took toward it his fear intensified.
After all, who wouldn't be scared about potentially meeting a gigantic snake with deadly poison and killing eyes?
But he kept walking, knowing this was his only chance at seeing the chamber before it is ruined by the golden boys.
As Harry reached the entrance to the main place, he looked to the statue of the snake he should open again and said with a hiss "library".
Yes, Harry has no wish to go into a place the basilisk could be, instead he wanted to see if he can go into the place where Salazar kept his things.
When nothing happened he started calling different places which can't mean grand hall or nest of snakes.
After 8 minutes of saying different rooms, he changed his approach by saying different subjects.
He started with potions and continued with the others, saying all the classes they were teaching in Hogwarts except for COMC (can care of magical creatures) for fear of opening the grand hall.
Just as he was saying "Divinations", a door was opened to the side of him.
Surprised, as it was a subject everyone in this world thought worthless, he walked in to the room cautiously, not knowing what was inside, when he saw the room was almost completely empty, with only one table in the middle of it.
Surprised, and a little sad, he walked toward the table, where he saw a stone tablet.
Looking closely, he saw there were runes on it, and even though he couldn't translate all of them, from the parts he did translate he understood the meaning of them was to measure magic and project something.
So he put magic into them, and they started to glow.
As he put more and more magic, the glow grew until it released the light toward the wall in front of him and a projection of a women was showed.
"If you reached here, it means you past all the tests." The women started talking. "You followed the clues I left behind to find the entrance to the chamber- so you must be clever, you have the ability to talk to snakes so you are either my grandfather descendent or a genius in his caliber, as you managed to do the ritual that grand you the ability, you have enough magic to activate this artifact- so you must be close to the limit of the second magical base at the very least, and most importantly, you can't be above the age of 15, otherwise the room wouldn't have opened up to you.
All of that means you are worthy of being my, Anastasia Slytherin's, granddaughter of Salazar Slytherin and Godric Gryffindor, legacy inheritor."
Harry felt his eyebrows raise higher and higher while surprise could be seen in his face as he kept listening to the projection.
"As you know, while basic knowledge can be acquired by all who learn in Hogwarts, but if you want advance knowledge, knowledge that can make you better then the mediocre wizards and witches that are satisfied with the things they learned you have to research for years.
The only other way is to inherent a study, but most of the magical people who researched those stuff had strict requirements to get their life's work.
I, myself has inherited both of my grandfathers's studies.
Salazar had an obsession with the intent behind the spoken part of spells and runes, while Godric explored his gift in seeing the future.
I continued both of their studies on my own, and created this room, in the chamber of my grandfather, so the inheritor I foresaw would come.
Now, you came, learn what you can, take what you need, and remember, the future you see isn't set in stone, you can only see probabilities, the only set in stone future is a prophecy, and it is so vague, it is worthless.
As a creepy old man once told you - "I expect interesting things from you, Harry Peverel"
She winked and disappeared.
Surprised that she knew him, he nearly missed the wall on his right glow.
As the glow disappeared he saw it was filled with writings on it that took him a second to recognize as Latin.
The first sentence was 'divination for dummies-by Anastasia Slytherin'
Harry's last thought before starting to read was 'This is interesting'