Hidden, ( a harry potter book)

did you ever wonder what happened behind the story of harry potter? did you ever know what happend before harrypotter? did you know about the two girls that changed hogwarts? well now you can know. follow rose and raven to hogwarts and find out secrets that were never told, peope that were never seen, find out how rose and raven destroyed and fixed hogwarts , in the book hidden <3 enjoy!