its on the 7th floor corridor, when you walk up to it it will appear but if it doesn't then you still have another task and you aren't supposed to be there.
Harry opened the secret passage with Parseltongue.
In "Harry Potter and the Order of the Phoenix" game, you can find the secret passage for Hannah Abbott in the Ravenclaw common room. Look for the door that leads to the balcony area, and you will find a hidden passage that requires you to solve a puzzle to unlock it. Once the passage is opened, you can proceed to help Hannah.
There is no secret blood relative of Harry's revealed in Harry Potter and the Deathly Hallows.
a sword
In my opinion the biggest secret is that Severus Snape is good.
get married and have 3 kids
Secret!! :p
Dobby the house-elf told Harry about it .
You have to jump on the platform at the top of the stairs. That'll open a secret passage which you can reach by jumping on the Spongify mat.
You have to find a replica of a portrait that is awake. then you have to preform a task so that you can use the secret passage way behind it.
"Dissendium"
He is a werewolf, and that he was best friends with Sirius Black and Harry's dad (James Potter).