Hogwarts: A Mystery

What happens when one of the Founders trips into the present? Salazar is pretty sure it should involve heads rolling, namely that bloody messy Gryffindor's, but she soon finds something dark is afoot at Hogwarts. Just what really happened to split the Founders apart? And why is it still affecting the school in the 20th century? And just WHO told everyone she was a man! (SS/SS)