Harry Potter's sister ~~~ Fanfiction

Hermoine's jealousy part 80

"Hey Luna, this says your Birthday was last week?" said Harry. "Why didn't you say?"

The group had finished eating and were spending an hour playing gobstones whilst their stomachs settled before returning to the water.

"I didn't think it was necessary." Said Luna.

"Well it is." Said Emma. "We need to have a Birthday party for you as well."

"We could wait until Demelza's and mine." Said Ron. "Have a triple party, that way Hermione doesn't need to miss out on Homework."

"Would that be fine Luna?" asked Emma.

"You do not need to..."

"Luna, we've already established that we love parties, so you're getting one. Even if it's shared with Ron and Demelza." said Harry.

"Thank you Harry, and everyone else to." Said Luna happily.

They spent as much time in the water as they could before curfew approached.

"Where have you all been?" said Percy as the Eleven Gryffindors entered.

"We were just having a party." Said Harry.

"You seem to have a lot of them." Said Fred.

"I wonder if we should feel jealous?" said George.

The next day classes restarted and the stress and worry, which Hermione was happily without during the Christmas Holidays, quickly re-emerged. In Arithmancy, they finally started doing basic coursework on the Elemental Magic.

It was a concept everyone had trouble wrapping their heads around, even Harry who had done a significant amount of background research. Professor Vector produced various mathematical formulae that were necessary to construct and Elemental Clef and harness the power of the magic. In simple terms it was lots and lots of maths with the promise of performing magic much, much later on.

"Each Element needs to have its numerical data worked out before one can harness that Element into magic. As the name suggests, the numerical variables are different for each spell, rune or potion they are applied to. But we are not going to worry about those variables just yet. Right now I want you to learn how to mathematically, or if you prefer arithmatically, determine the Element of Fire. In classes to come we will work on the other Elements. I want you to work with your partner for this." Said Professor Vector.

At the beginning of the school year, Professor Vector had personally seated everybody into groups of two and everyone was expected to sit in those pairs in every class. Harry was paired with Susan Bones.

"No that's wrong." Said Harry looking over the grid where Susan had placed a number. "You didn't take into accounts the variables in boxes 19 and 20. You need to differentiate the answers in those boxes then combine them with what you've got and then divide by the answer in box 14 squared."

Susan looked at him incredulously. "How on Earth do you know this stuff?"

"Mr Potter has done a lot of background research into the Elements." Said Professor Vector, looking over the table that Harry and Susan were working on. "By the way you forgot to square the number in box 7."