Basic story info
A/N: I do not own Harry Potter if I did then it would turn out something like this…
A/N2: So that no one gets confused here is the basic rundown of what happened so far with other tidbits that are helpful
Prequel:
Lily and James Potter had twins, Hadrian James Potter (older) and Christopher Charles Potter (younger). On that faithful Hollow's Eve when Voldemort attacked and left the twins orphaned Dumbledore declares Christopher as the boy who lived and Hadrian as a squib.
Christopher, who is a redhead with brown eyes, is raised with the loving warmth of the Weasley family and trained by Dumbledore from a young age. Hadrian, a green eyed blacked haired boy, was dumped on the doorstep of the Dursleys.
On September the first, on the Hogwarts Express, Hadrian meets Hermione and connects with her. Hermione is sorted into Gryffindor, Hadrian into Hufflepuff.
The Twins, The Truth:
Hadrian Dursley does not know that Christopher is his twin brother, he does not know he is descendent from the Potters, nor does he particularly care. He believes for all intense and purposes that he is a Muggleborn on a scholarship, like Hermione.
Christopher Potter is led to believe, with Remus, Sirius and everyone else in the magical world, that his brother one Hadrian James Potter died along with his parents, even though Hadrian is a carbon copy of his late father with his mother's eyes. (No glasses)
Money:
1 Knut = 10 pence
1 Sickle = 2 Pounds, 50 Pence
1 Galleon = 50 Pounds
Blood status:
Pure Blood – born from two magical parents, in which case Harry Potter is a pureblood
Half Blood – born from a magical and non-magical parent, in which case Riddle, Snape is a Half Blood
Muggleborn, Mudblod (read mud as fresh and fertile blood) – born from two non-magical parents, in which case Hermione is a muggleborn or mudblood.
Special case Draco Malfoy and Blood purists – even though I have made clear all classifications some people will still spout that unless you can trace your magical roots back 3 generations you are not a pureblood, that Harry Potter from cannon is Half Blood and that muggleborn are nothing but dirt that should be cleansed. (because Logic)
The Trace:
There are two requirements in order for the trace to function, a wand of an underage which or wizard and that said wand be used in a non-warded area. In layman terms that means that if you are under 17 and use YOUR wand in Diagon Alley, Platform 9 ¾, in your Home or in the great wild you get an Owl from the lovely Mafalda Hopkirk and you are invited to share your excuse in the DMLE and or pay a fine.
However if you are a Pure Blood or Half Blood (check above for classifications) then you are most likely living under some protective wards and can use your parent's wands to do magic in the summer.
With the above said Muggleborns are basically screwed.
Let us not forget about the possibility that if you do not use a wand to cast a spell, keep it relatively under powered and no one reports any discrepancies the beloved Ministry of Magic will be none the wiser. Sadly wandless magic, beyond the most simplest spells, (example: Lumos) is only a myth, right?
