This is where Lillith staches all the dead folks to ensure they stay nice and fresh. But why does there have to be a deadlock on the other side of the door? Well, for saftey reasons she had to make sure no undead get out, or even let any crazy students try to get her corpses. Last year, somebody snatched all her bodies and placed them in Loon's room; there's been bad blood between the two ever since.