So, no. The work was written long before I ever heard of Harry Potter. Through no design of my own, Branshead is the opposite of Hogwarts: a school where magical beings learn how to be muggles. The students want to break out of school and return to lives and families at home.
Nor is this book anywhere nearly gross enough to qualify for YA status. To win awards in YA fiction, one needs to describe rapist elfs sodomizing boys with thorn bushes, or a father having sex with the ghost of his little son he murdered. Incestohomopedonecrophilia, we might call that: One needs special names to describe the new perversions. I wish I were making those examples up.
Wow, I’m going to have to add some thorn bushes, AT LEAST.