Remus and Sirius are the first to find him, ten minutes later, half the exterior ice melted, a very cold, very wet, very annoyed James in the middle. Remus frees him from the ice with a well-placed heating charm as Sirius leans against the wall and laughs fit to burst.
"Get me a blanket, wouldja?" James snarls at Sirius as he tries unsuccessfully to clear his glasses with the tail of his sopping-wet shirt. Remus wordlessly takes the glasses and cleans them off, nodding his head at the muttered, "thanks". Still laughing, Sirius hits James with a drying charm.
"Lily?" Remus asks, one corner of his mouth quirking ever so slightly upwards.
"Lily," James agrees, still shivering.
"Just like old times, eh, mate?" Sirius claps him on the back. "I knew that bird was good for you." He guffaws. Peter clambers in through the door.
"Oi, Pete!" Sirius yells. "Go down to the dingerdroobles and get Prongs a nice bit of Remus' special drink?"
"Why again is the kitchen dingerdroobles?" Remus asks as Peter pops out the portrait hole again.
"Because it's cool," Sirius replies. "And everything else was already taken."
"Besides the Room of Doom," James remarks. Both boys look at him, then at each other.
"Why-" "That's good!" "It rhymes!" "We need to change-" "No, it's Seventh-" "Who cares?"
They're still arguing as Peter walks in again, carrying a tray bearing four steaming mugs of hot cocoa. He's also picked up a few blankets, which James grabs and immediately swaddles himself in. The three round on him.
"So, Pete, dingerdroobles or Room of Doom?"
Peter blinks. "Huh?"
"It's a fair question, mate," James states.
Peter's still a bit confused, but goes with it. "Um… Room of Doom?"
"Alright!" Sirius cheers, upsetting his hot cocoa in the process. "Damn."
Remus laughs at him; Sirius retaliates by throwing a pillow. With some pretty wandwork on Remus' part, the pillow swerves, hits Peter, then bounces off. An all-out pillow war ensues in the Gryffindor common room. James whoops, struggles out of his blankets, and joins in.