Open Question: for all harry potter lovers..is this idea original?

Is this idea similar to harry potter? i'm writing a series called ravens'head.It's about 12 yrs old victor greene,a carefree young chap who spends half of his day working as a butcher boy to pay for the rent of the house,since his father is mysteriously away all the time.But one day he finds his mother poisoned (a suicidal note was beside her).And when he mentioned his father the authorities told him that elliot greene had officialy died in a car acciedent 2 years ago.Now,after being thrown on the streets of london,unable to pay the rent of the hovel.victor is summoned by a mysterious man driving a carriage to ravens'head orphanage....in a secret street in cornwell the huge orphange stands,inside the ophanage vicotr finds out that everything is done through magical equations that are written on magnifying lenses.Victor learns magic math along with the other orphans,and at night he sleeps on the classical music played by an orchestra of centaurs and bugled out through huge speaker all over the place.But one day victor finds out from noah(a werebear working in the orphanage's cafe)the deadly secrets that brought victor into the orphanage ,also he tells him of godnofer the owner of the orphanage who's entranced by a magical equation in one of the secret rooms in the orphanage for 30 years.But noah tells victor of godnofer's biggest plan,that will make of all ravens'head orphans his followers.But first of all he has to wake up from his trance and the only one that would be able to do so is victor himself,he'll have to wake up his enemy....but victor won't go alone ,sylvia victor's new love interest an friend follows him everywhere to make sure that he's ok....along the 4 books series victor uncovers secrets of his father,mother,and origin...And above all he finds that his father is alive and he's on the dark side along with godnofer.....the secret of his mother's poisoning ,and the deadly magical equations all will be unraveled ..... (i'm 16,and i write better than these synopsis...do u like the idea ...is it original?would it make a nice series??)(actualy i love it) 20 minutes ago - 3 days left to answer.