That's why I was in the Restricted Section. As an Eighth Year student, I was no longer a minor and didn't need permission to be here. Also because this was the first week of school since a horrible magical war, nobody else wanted to be near any Dark Tomes. I was reviewing the text on advanced magical theory and spatial spells; I was able to affix wards on a single location to build a null field in one spot, so why couldn't I do the same wards onto a movable object? And in time, affix location specific wards onto a person. The spells were complex for setting up a ward on a static item such as a wall, but if I could pull this off, I might be able to negate the Compulsion on myself permanently.