After dinner was over, with Harry, Amy, Susan, Hannah, Sirius, Remus, Amelia, and Heather still seated, Harry spoke up.
"Amy, Susan, and Hannah?" asked Harry warmly, "I know we all love the name Yellow Quartet. But, are the three of you open to Yellow Quartet having a logo?'
"YES!" chorused Amy, Susan, and Hannah eagerly.
"So, " explained Harry, "I think our logo should be a bright and vivid yellow square."
"Yellow for the Yellow Quartet, obviously, " piped up Amy, "This yellow square should be the same shade of yellow throughout to represent the oneness of the Yellow Quartet."
"Smart girl, that Amy Alworth!" grinned Harry, and Amy grinned and giggled.
"A square has four sides, " said Susan thoughtfully, "The four sides of this yellow square could represent the fact that the Yellow Quartet is a friendship group that consists of four people."
"That Susan Bones has an intelligent mind!" exclaimed Harry and Susan smiled and laughed.
"Bright and vivid to represent friendship!" guessed Hannah hopefully.
"Hannah Abbott's brain works the right way!" declared Harry and Hannah glowed and chuckled.
"So, " continued Harry emotionally, "I thought that the Yellow Quartet could adopt a bright yellow square as our logo."
Looking at Amy, Susan, and Hannah, Harry said in a crystal clear voice, "I think the four of us should vote on it. So, if you are a member of the Yellow Quartet and you agreed that we will adopt a bright yellow square as our logo, then please raise your hand."
Almost instantly, Harry's, Amy's, Susan's, and Hannah's right hands all shot into the air.
"Motion approved!" said Harry radiantly.
Next nanosecond, Harry dug his hand into his right hand pocket and retrieved four pins. These four pins were perfectly shaped squares of a single shade of a bright vivid yellow.
Harry handed one of these pins each to Amy, Susan, and Hannah while keeping one for himself.
Without uttering a syllable, Harry, Amy, Susan, and Hannah all lifted the pins into the air at the exact same nanosecond and fiercely shouted "THE YELLOW QUARTET!"
After bringing the pins down, Harry, Amy, Susan, and Hannah lifted them into the air a second time and chorused "THE YELLOW QUARTET FOREVER ONE!"
Harry, Amy, Susan, and Hannah now all put the pins on. Looking at each other, they all felt each other within themselves. The bright yellow square would now forever symbolize the forever bond of the Yellow Quartet.
"Aw, " cooed Sirius, "That's so sweet!"
"Sirius and I once thought we had a forever bond with a quartet of our own, " said Remus bitterly, "But, alas, only three out of four us were committed to it."
"I hate the fucking double crosser as much as you do " said Sirius clearly, "I'm confident that the bond of the Yellow Quartet will never be shaken though."
"Seeing it up close, I've never seen a bond like the bond that Harry, Amy, Susan, and Hannah share as the Yellow Quartet!" said Amelia warmly.
"I couldn't agree more, " said Heather proudly, "And, on another note, I'd like to think of the four adults here as a quartet of our own. I know Remus and Sirius have always been tight, and I and Amelia have certainly been as well. But, speaking for myself, I feel as though the two pairs of best friends have grown closer since we've been living here to the point we adults can think of ourselves as a quartet of our own now."
"Agreed, " chorused Sirius, Remus, and Amelia.
"You kind if forced that by having us take adult only time sometimes, " said Amelia matter of factly.
"I disagree, " said Sirius smartly, "Heather only started insisting on some adult only time after she and you grew closer to Remus and me."
"Sirius is right there, " confirmed Heather.
"You know, " said Remus thoughtfully, "I think us all living together made it inevitable that Sirius and I would grow close to Heather and Amelia. We were already friends and on good terms with them even if we hadn't been overly close before."
"Exactly, " nodded Heather, "It's not like we total strangers when we came here."
"I'm just grateful that Harry has such great besties, " said Sirius cheerfully.
"Agreed, " added Remus, "And the bright yellow square is the perfect symbol for the Yellow Quartet."
"Harry couldn't have chosen a better logo for the Yellow Quartet, " said Sirius proudly.
"I can almost their bond myself when I hear them talk to each other and look at each other, " said Amelia sincerely.
Heather now withdrew her wand from her right hand pocket with her right hand and made a few movements while performing a nonverbal spell.
When she had finished, a bright yellow square shot out of her wand.
Sirius, Remus, Amelia, and Heather now left the room leaving the Yellow Quartet to themselves.
The logo of the Yellow Quartet was now floating across the room, filling all four of them with joy and warmth.
Harry, Amy, Susan, and Hannah all watched it meaningfully.
They could feel their bond and the strength of their bond within both themselves and their logo.
Harry, Amy, Susan, and Hannah truly were and would forever be part of each other.