Kedfeel

Why are wizarding children forced to study at the mysterious Hogwarts? To gain knowledge? Oh yes, they will receive a variety of undoubtedly useful knowledge... If they don't die in the process, of course. After all, the castle is fraught with many secrets, and each of them can easily be fatal for an overly curious or careless student.
Will an ordinary person, who by evil will got into the body of a young Muggle-born, be able to survive all that the school has prepared for him?

Disclaimer
I do not assert any ownership over anything. J. K. Rowling owns everything.

This translation, from the Russian fanfic.

Table of Dark Hogwarts

Table of contents

Volume 1 :Volume One

Volume 2 :Volume 2