I'm going to travel in time (harry potter fanfic)

The next era

"Hey Katie get over here now!" I shout
"Um..." She hums as she comes over
"Yeah"she said
"We're leaving lets move eras this place has gotten so boring nothing happens around here" I whined
"Yeah I suppose your right, but where should we go?"
"Drum roll please"
Katie started to bang on the desk
"The marauders era!"
"Yay I have always wanted to snog Sirius black"
"Yeah well I have a plan time for some pay back I think" I said with a sly smile
"Oh no "
"Oh yes, right well you know that they bully Severus Snape well I think we should prank them so much to get revenge for him" I said
"Ok sounds good so far but how are we gonna do that without being detected because we are hardly unpopular?" Katie said in a smug way as though she had outsmarted me Hahahahaha never gonna happen (😏)
"We use are metamorphogas powers"
"I can't believe I'm doing this"
"So you in?" I question
"Yeah yeah I'm in" she replies smiling
"Yeah off we go"
And with that we apparated into an Age 14 Severus Snape's room.