The Second Generation.
Disclaimer: see chapter one
After they finished eating, the prefects led them to a strech of bare, damp stone wall in the dungeons.
"Parseltongue." the Prefect said. A stone door conceeled in the wall slid open and they walked through it. The Slytherin common room was a long, low underground room with rough stone walls and ceiling from which round, greenish lamps were hanging on chains. A fire was crackling under an elaboratly carved mantlepiece ahead of them, and several high-backed chairs stood around the room. There was also a large, green couch sitting near the fire and several small worktables placed around. On the far side of the room were two doors with spiral staircases that went up and down. On a stretch of wall between them was a beautiful portrait of a surly, stern looking man.
"That," the prefect said pointing to it. "is our great founder, Salazar Slytherin. The boy's dorms are up and down in the left stair case, girls, the same on your right. Your things will have already been placed at the end of your four-poster bed." Marcus and Johnathan went up the boys stair case with three other boys. Jeremiah Fighst, Jason Stone, and Jedediah Wood.
The dormitories also had rough stone walls and a small, green rug next to the five four-poster beds. The beds had silver silk sheets and an emerald green comforter embroidered with the Slytherin crest. The beds themselves were stained a deep black and had, of course, deep emerald green, velvet curtains. The room had the same green lamps the common room had. The boys opened their trunks and put their stuff where they wanted it. Both Marcus and Johnathan pulled out posters of the Bulgaria, Transilvainia, and the Tutshill Tornados Quidditch teams. They smiled at each other. Jeremiah had posters of the Holyhead Harpies, Kenmare Kestrels, and the Montrose Magpies; Jedediah had some for the Falmouth Falcons, Puddlemere United, and Pride of Portree: and Jason had the Wimborne Wasps, Caerphilly Catapults, and the Irish Quidditch teams. They all got into a big disscussion about Quidditch and only stopped when they realized how late it was. The got into bed and Marcus put the lights out with his wand.
"How'd you do that?" Jason asked.
"What?" Marcus asked.
"Put the lights out? We haven't even started class yet," Jeremiah said.
"Yeah," Jedediah agreed.
"My dad started teaching me basic magic when I was nine," Marcus replied.
"Your dad? So your dad really is the Potions Master then?" Jason said.
"Yeah, mum is the Head of Gryffindor and Transfiguration teacher too," he said.
"Professor Granger?" Jeremiah asked.
"Yeah, she still uses her maiden name in school because it would be really complicated with two Professor Snapes, wouldn't it?"
"Yeah it would. Gryffindor? Yuk."
"Yeah, you really can't have fun in any of the other houses 'cept Slytherin 'cause you're expected to make at least a little trouble as one of us," Jedediah said.
"Yep, I wanted to be Slytherin because dad couldn't really pay much attention to me otherwise, could he Jedediah?"
"Suppose not, by the way, just call me Jed. Jedediah takes to long to say," Jedediah said.
"Alright, call me J then. Why did our parents give us such long names?" Jeremiah said.
"Yeah, call me John. My dad thought it would be funny to make my name long so mum would get annoyed," they all laughed.
"Right, bed. We do have to get up for class tomarrow." Marcus said. They all murmered assent and fell asleep in seconds.
(A/N: All of those Quidditch teams are in Quidditch Through The Ages so if you want to know about them, get your copy out or go buy one.)