The room
Your copy number
is the key.
Every copy of the first printing is numbered by hand. That number, printed in your copy, is what opens the deeper Ways Back, the practices, and the yearly receipts on where the money went.
The room is not open yet. It opens when the first printing ships. If you have reserved a copy, the way in arrives by email first, quietly, before anywhere else.
No copy yet?
The first printing is 500 copies. Each one is numbered, and registered to the name of the person who keeps it.
Reserve a numbered copy