James, Sirius, Remus, Peter, Lily, Alice, Mary, and Marlene arrived at Dumbledore's office, out of breath. They'd just run across the castle from the hospital wing nonstop.
"Lemon Sherbert", croaked James and the gargoyles let them in
They found Dumbledore still at his desk. He was smiling and there was a twinkle in his eye under those half-moon spectacles
"Well, I was wondering if I'd be seeing you 8 today", said Dumbledore
James flicked his wand and 8 chairs appeared. They hit the back of the others' legs, forcing them to sit down.
"I was truly sorry to hear about your parents James", said Dumbledore solemnly
Alice, Mary, and Marlene didn't know about the Potters' deaths so Lily quickly explained.
"It seems the Death Eaters have heard about your mission, have any of you told anyone?"
"No sir", they all answered at the same time
"James, Sirius, Remus, and Lily, you are members of the Order, but they are not.", said Dumbledore
Each of them nodded in turn, leaving confused looks on their friends' faces. Nobody knew the Order existed except its members.
"For the five of you, I am inviting you to join the Order of the Phoenix, which is an organization that fights Voldemort and his Death Eaters."
All five of them instantly accepted Dumbledore's offer, though Peter looked like he only did it because his friends were part of it.
"Please pull up your right sleeves.", said Dumbledore to the newest members of the Order and Lily
The five of them pulled up their sleeves. Dumbledore reached across his desk and branded them all with a phoenix in turn. The pain wasn't that bad compared to what they'd been through earlier, but they knew to a regular person, it would have been excruciating.
"The Death Eaters have the Dark Mark on their left forearm. The phoenix on your right arm shows that you are the opposite of the Death Eaters.", explained James
"You three already have the mark?", asked Alice
"We've had it since March when we joined the Order", answered Remus
"The eight of you should probably get some rest before classes tomorrow, you've already missed a day and a half's worth of classes", said Dumbledore
The eight of them stood up and James Vanished their chairs. All of them went back to the Gryffindor and Head student common rooms. That night, all of them fell asleep thinking about the Order and what it meant for them