Bookhouse Institute
📚 We hide treasure hunts in books.
👑 If you find the treasure first, you can have it.
The Grimpen Affair
Somewhere in the wilds of the UK a one-of-a-kind rulebook for a tabletop RPG called Department 23, lies hidden.
It will never be reprinted or recreated.
To find it, you’ll need to solve every clue woven into The Grimpen Affair, a standalone 1970s British folk horror one-shot RPG set within the same world of Department 23.
If you solve all the clues and find the treasure first, it’s yours. And its publishing rights.
