Harry Potter AU where James, Sirius and Remus are given the opportunity to go back to Hogwarts as ghosts for a few months, as well as a few other important people, after the War.

This is an extremely short one shot, but I hope it's worth the read... Please let me know if you'd like to hear about more adventures from these guys!


McGonagall was tired. It'd been a long, stressful day with a bunch of new first years, most of which had asked her stupid questions such as "Why do the staircases move?" to which the reply was obviously magic. "Why do the portraits move? They don't in the muggle world." Obviously because wizards love creating gifs, was a reply from another student, a reply that satisfied the inquisitor and left McGonagall baffled.

Anyway, she was tired, grouchy and ready for bed. If only she didn't have to do the first night watch! At around midnight, just before she was being taken over by Slughorn, she heard a loud 'BANG' in an empty classroom along the corridor. "PEEVES!" she shouted automatically into the darkness, briskly walking towards the offending room. Under the closed door leaked what looked like one of the Weasley's swamps from their fifth year. Scowling to herself, McGonagall forced open the heavy door and prepared to shout at the poltergeist for making such a mess… except he wasn't there.

Instead, three ghosts sat on the unused teacher's desk, looking as innocent as they could while the swamp grew larger by the minute. McGonagall stopped in her tracks. The boys on the desk were startlingly familiar. All looked young, cheerful… almost too cheerful for the dead. One ghost, with shoulder length hair that used to be a sooty black in colour, grinned a wolfish grin at the professor. Another, with shorter neat hair just smiled sheepishly, looking slightly embarrassed to have been caught red handed. The last looked confident, running a slender hand through his unruly hair that had lost its colour when he'd become a ghost. "Oh Merlin," McGonagall rolled her eyes, "Not you three again!"

For sitting in front of her, on the desk, were none other than Remus Lupin, Sirius Black and James Potter, all looking decidedly pleased that she'd recognised them, despite them being more… silvery blue than they had been in life. "Sorry, miss," Sirius grinned, "We were given the chance to come back for a while,"
"Yeah, and it just so happens that we reverted back into our seventeen year old bodies!" James added, "How awesome is that?"
"Where did you get the swamp from?" McGonagall asked, "I didn't see that in your school time."
"Oh, the newest Marauder gave us the spell," James grinned, gesturing vaguely with his hand to the door.
"Newest…" McGonagall pulled the door back from the wall and hiding behind was a young ghost, eyes bright and laughter on his face. McGonagall couldn't help but smile. She wasn't even mad.

In fact, she was extremely happy that James, Sirius and Remus had taken on Fred Weasley as their fourth member.