The Truth About All Hallows Eve

There is one night a year when all spirits and creatures of the dead can cross over and wander the living world. This night is All Hallows Eve. Lock your doors. Lock your windows. Stay inside. If you are unfortunate enough to find yourself outside after dark, run. Get inside. If you are unfortunate enough to find yourself near a creature of the dead, run for your life! Hide! Don't let them catch you! It is said that if they catch someone, that person is never seen or heard from again.
Many say that this is just a horror story of old times. "It's not true" some will say, but there is one family that knows the truth about All Hallows Eve. They will say that it's not a story, but a warning!
This family, known as the Guardian family, has held the truth about All Hallows Eve for generations. Each generation learning the truth on their first All Hallows Eve after their 16th birthday.
For generations now the living world has been kept safe from the terrors of the spirits and creatures of the dead, but there is prophecy. One as old as the truth of All Hallows Eve itself. One each generation has tried to avoid. The prophecy says that one foolish girl of the Guardian family will demolish in one night what generations have spent thousands of years protecting.