Padma, Parvati, and Susan Bones had a goal, and no one was going to stop them. Parvati had already visited her sister and the Ravenclaw house, and then they both went to the Hufflepuffs, where Susan joined them on their quest. Now, with Ron's directions, all three young women walked with purpose to a particular section of wall in the Dungeons, pausing at one of the bricks with an intricately carved snake with an open mouth but no fangs. None of them knew the password, so Parvati, Gryffindor that she was, just knocked loudly on the brick until the section of the wall opened from the inside, and a small second-year poked his head out. He gasped when he saw the three girls and went to close the door as quick as he could but paused when Susan declared: "We mean you and yours no harm. We wish to set forth a truce until the time when a decision can be reached, and request to speak to the Slytherins on their ground if they will have us." Here, the boy looked nervous, but nodded and asked them to wait while he went and got an upper year. He left the door propped open just a touch, but they did not enter. They just waited at the entrance until the young boy came back and opened the door again and motioned for them to step in. Once they stepped in, they were stopped by Marcus Flint with his arms crossed and his usual scowl on his face.

"Now what is this about?" he asked.

Parvati stepped up and repeated what Susan said to the younger boy at the door, and added that it was a vital matter that affected everyone involved in the war, no matter their side.

They were lead further into the common room, and stopped at the end of the entryway, looking into the common room occupied by every Slytherin that was attending Hogwarts.

Parvati swallowed down her nervousness at being surrounded by the Snakes and started her speech that she had just given to the Ravenclaws and the Hufflepuffs. She said, "Hello everyone, for those of you who don't know me, I am Parvati Patil of the Gryffindor house, and this is my sister from Ravenclaw- Padma Patil, and my friend from Hufflepuff- Susan Bones. I come tonight to request your house to join the rest of the student body in a special meeting room on the seventh floor by the tapestry of the dancing trolls this Saturday at 2 pm. I am not sure how long the meeting will last, so that is why it starts so early in the afternoon. Food and drink will be available to all as well. I have already asked Ravenclaw and Hufflepuff tonight, and both houses have accepted to attend this meeting tomorrow. The Gryffindor house learned some startling news on Thursday night, and we feel we need to share it with all of the students of Hogwarts, as this pertains to how the war that we all know is coming will play out. I ask that you please not inform your Head of House, or any other adult, of this meeting, as we will not know who we can trust on the Staff until after this meeting. Also, please do not discuss any of this outside of your House, especially near any portraits or suits of armor, as they are being monitored and constantly report back to the Headmaster. As a sign of good faith to each house, Gryffindor offers the knowledge of a secret entrance available in each common room that allows for students to appear in different parts of the castle, as well as allows you to leave the grounds without anyone's knowledge. If you accept to join us in this meeting, I will tell you where this entrance is."

By the time she finished, she was out of breath, but was satisfied with her speech, as the Slytherins looked just intrigued enough that they might accept, and she needed them to accept. One of the seventh years put up a privacy ward between the house and the three girls, and then everyone started to discuss.

About ten agonizing minutes later, the privacy ward came down, and a blonde fifth-year girl stepped forward and delivered their answer.

"I am Daphne Greengrass," she said, "and I will be acting as Slytherin's advocate. We agree to your terms, but know this: if this is a prank, then you will have made an enemy out of every single Slytherin, Dark, Neutral, and Light." At that, she stepped back to where she was and sat down again.

Parvati shook her head and promised that is wasn't a prank. They didn't need to know this yet, but the Slytherin house was the lynchpin in how the war would turn. Either student would fight student on the battlefield, and many would die, or they would all stand together as one against the Dark Lord.