I recently made a second PKP puzzle for my girlfriend’s niece. The puzzle revolves around a box that once belonged to Cora Aldencamp, a former PKP member. The box contains a series of stamps that can be used to uncover the code needed to unlock a secondary (virtual) box.
Once the correct code is entered, the user can print out a PDF that can be cut and assembled into Cora’s lost journal, which contains a further hidden message.
To see a full album of the build process, head here.
To try the web-based component (implemented in WebGL via Three.js), head here.
If you want to make your own copy of Cora’s journal, grab the PDF here.