How to make a secret door / bookcase - YouTube
Wooden Puzzle Lock For Secret Door
How to make a book on the bookshelf a secret Switch. - just in case we ever decide to build a secret room.
The knots point out the coördinat. The colors tell the number. Wonderfull!
...for the hardcore: the Arcana Artifact. A locked puzzle box we WILL NOT give you the password to. You gotta earn the challenge coin and cards inside. by scamschoolbrian