You're walking in the Leaky Cauldrons.
You see a sign
, "to serve as a gateway between the non-wizarding world and Diagon Alley."
As you enter the shabby building, you spot a fairly big, and enchanted poster.
It says.
" Congratulation's to the student's who managed to get past the following riddle. You have furthermore proved that you aren't only much of a Lunatic,
Here is your next clue.
Panic in Hogwarts always caused a procession in Students. Neville Longbottom served a great duty during his time, with Neville being the leader of Dumbledore's Army. In the Battlefield, many died leaving marks in history that will never fade away. Despite the young age's, they rode the dragon's flight to battle. Sadly, many died, including a certain proffessor, and although he was evil, everyone will never forget Snape's demise which helped harry forward in his adventure. It initiated the procession to destory Voldemort. Neville, a brave fellow amongst all, killed the last hocrux. and with that, Neville, Harry, Hermione, Ron and the rest of the wizards lived a happy life."
Afterwards, proceed and find the next clue.
You're finding something specific, and no it's not an item.
After solving it, message the sorting hat. and there you can have access to the final clue.
I wish you luck, wizards and witches.