The Grimoire Chronicles- A Harry Potter Fic. TGC

The story is my take on Harry Potter, so I am adding my own plot and wouldn't be following OC and would only be adding the original plot as a back ground.
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Adrian Rosier, the sole heir of the Rosier family and the only son of Bellatrix.
In the world of magic, where nothing is limited, Adrian grew up knowing he was different than everyone because of his Grimoire that was contracted to him since birth.
But with every power comes a lot of trouble to counter it, making even Voldemort seem not so threatening against such greater powers.
How will Adrian face them?